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Mar 14, 2008

Extending the Patent Term: Most Patents Are Extended Due to PTO Delay

ScreenShot04435 U.S.C. 154(b) provides for an adjustment of the standard patent term in cases where a patent’s issuance is delayed because of delay at the U.S. patent and Trademark Office.

I looked at all 6155 original utility patents issued between March 1 and March 13, 2008 to see how often patent terms are adjusted. In this sample, the vast majority of issued patents have an extended patent term due to Patent Office delay. Specifically, 72% of the issued patents include at least some 154(b) extended patent term. Among those with an extended term, the average extension is 392 days. A few patents from the group have very long extensions that approach five years. These are generally explained by (1) secrecy orders and (2) BPAI reversals. (See Patent Nos. 7,342,534 and 7,339,604). 

The first chart below is a histogram of the the patent extensions. As can be deduced from above, 28% of the issued patents have no extension. Slightly over 10% of the issued patents were granted an extension of three months (0.25 years) or less. A cumulative frequency chart of this same data would show that just over 50% of all the issued patents have a term extension lasting more than six months.

ScreenShot042

Of course, the extension term is correlated with the length of time in prosecution. The following scatter plot shows this relationship quite well. The demarcated boundary on the plot is an indication of the potential extension when the entire delay is attributable to the PTO.

ScreenShot043

Other studies show that primary examiners are “quicker” — i.e., that patents examined by a primary examiner issue more quickly and with fewer amendments than those examined by assistant examiners.   Here, I also found a difference between the type of examiner.  As may be guessed, issued patents associated with an “assistant examiner” are much more likely to have an extension. (78% of patents with assistant examiner have extension compared with 69% of patents examined only by a primary examiner). It appears that at least some of the quickness is due to the examiner actually acting more quickly (rather than merely compromising more easily).  Similarly, continuations are much less likely to receive extensions than patents without any ancestral history.  (78% of patents with no ancestry have extension compared with only 61% of patents that reference one or more parent).  That result is explained by the PTO’s procedure of reviewing continuation applications on a priority basis.  Combining these numbers, I find a recipe for delay: In this study a patent with no ancestry that is examined by an assistant examiner has an 83% chance of received extensions due to PTO delay.

As with every measure of patents, the results vary dramatically according to the area of technology. Here, we see that Computer & Communication related patents (according to classification) are much more likely to receive a term extension due to PTO delay and, when an extension is proper, those same patents have a much higher expected extension duration.

Category Percent Receiving Extension Count of Patents Average Extension (Days)
Chemical 73% 606 343
Computers & Communications 82% 1690 544
Drugs & Medical 74% 536 387
Electrical & Electronic 64% 1369 270
Mechanical 67% 900 268
Others 65% 713 297

There are several potential practical implications of these findings: (1) a prosecuting attorney should be careful to avoid delay because applicant delay will naturally push-back the issue date and additionally reduce the eventual patent term; (2) In many cases, quicker issuance is preferable to an equivalent extension. However, it is important to consider whether delay is preferable for your case. (Of course taking affirmative steps to increase delay could be interpreted as a form of laches.

Mar 13, 2008

Do Patents Stimulate R&D Investment and Promote Growth?

James Bessen and Michael J. Meurer have authored a new book presenting a careful empirical analysis of whether patent rights encourage innovation. Their conclusion: for the most part, today's patent system does not achieve its stated goal. I asked them to provide Patently-O readers with a cut from their analysis. The following post is the first in a series of four by the authors. The book is titled: Patent Failure and published by Princeton [Web Link]. The analysis done in this book put Bessen and Meurer at the forefront of leaders in economic analysis of patent laws. I suspect that their results will become the talking points of the next round of patent reform discussions. A live symposium will be held at UGA Law School on March 29 focusing on the book and its results. [LINK]

==========

by James Bessen and Michael J. Meurer

As background material, this post reviews the sizable body of empirical research analyzing the impact of patents on R&D investment and economic growth. Three future posts will present new empirical research featured in our book Patent Failure. The theme across all four posts is that patents often fail to perform effectively as property rights. [DDC: To work well as property, the right should be predictably valid; have discernible boundaries; and not have an overly fragmented ownership scheme.]

Economists cherish property rights that provide strong incentives for investment and trade, and that thereby contribute to economic growth. Potentially, patent rights could accomplish these three goals, and surely they sometimes do. Apparently though, it is hard to set up and maintain a patent system that works as property.

The rise of new market economies and strengthening of property rights around the globe in the last two decades provides economists with "natural experiments" that help us evaluate whether and how much property rights contribute to investment and growth. The empirical results are impressive. Countries that expanded the role of markets and strengthened property rights have prospered from these choices. Economic historians find the same results hold going back to the Industrial Revolution.

Comparable studies of patent systems are discouraging. The evidence certainly is consistent with the notion that patents encourage American pharmaceutical R&D. But otherwise, it is hard to find evidence suggesting patents are a major factor spurring R&D investment, that patents contribute to economic growth, or even that the patent system is a source of great wealth to important inventors and innovators (outside of a few industries like pharmaceuticals).

Continue reading "Do Patents Stimulate R&D Investment and Promote Growth?" »

Feb 28, 2008

Claim Construction Reversal Rates II – District Court Judge Experience

    By David Schwartz

How do district court judges with varying levels of experience perform on claim construction? Are judges more likely to have their decisions affirmed when they have previous claim construction experience? Yesterday I provided some background on the large database I compiled and some overall results. [LINK] Today's post provides an analysis of the data based upon the number of previous appeals of claim construction. A draft of the paper, Practice Makes Perfect? An Empirical Study of Claim Construction Reversal Rates in Patent Cases, can be downloaded here.

If district court judges improve after appellate review of claim construction, one would expect that the reversal rate would decrease as the number of appeals increases. More specifically, a district court judge with more prior Federal Circuit feedback should have a lower reversal rate than a district court judge with less experience. Assuming that the judge decided the second case after learning of the decision of the Federal Circuit in the prior case, the second time a particular judge is before the Federal Circuit, he or she should be more likely to have his or her claim construction affirmed. Figure A below illustrates the reversal rates of district court judges broken down by the number of prior claim construction appeals.

ScreenShot034

The left-most set of bars represents the results from every judge's first appeal, with the blue bar indicating the percentage of cases that had to be reversed or vacated due to an incorrect claim construction, and the red bar indicating the percentage of cases with any erroneous claim construction. Moving to the right, the pairs of bars represent the results from each judge's subsequent appeals.

These results suggest that district court judges do not improve as the Federal Circuit reviews their cases. Contrary to conventional wisdom, the reversal rate does not appear to decrease when a district court judge has multiple decisions reviewed by the Federal Circuit on claim construction. In fact, the highest reversal rate is for judges with four prior claim construction appeals. Other than judges who have been appealed exactly four times, the range is very narrow, between 26.8% and 30.5% for reversals and 31.0% and 40.4% for errors. Thus, there does not appear to be significant expertise gained by district court judges via direct Federal Circuit review that causes the claim construction reversal rate to decrease. (As discussed in more detail in the paper, the study is subject to several limitations inherent in studying appellate cases, including for example, a potential selection bias and a potential distortion if the cases are not distributed evenly across the district court judges. Ideally, for research purposes, cases would be randomly assigned to a judicial district (i.e., no forum shopping), and a random subset of those cases would be appealed.)

Up next: Reversal rates based performance by district court judges after a first reversal by the Federal Circuit.

I welcome comments from the readers of Patently-O.

Feb 27, 2008

Claim Construction Reversal Rates I – Overall Reversal Rates

By David Schwartz

How do district court judges with varying levels of experience perform on claim construction? To study that question, I compiled a large database that includes every single post Markman Federal Circuit decision involving claim construction. Others have studied this issue from the perspective of the Federal Circuit --- i.e., what is the overall reversal rate. However, until now, no one has analyzed how district court judges perform based upon experience. My findings do not reveal any correlation between various measures of experiences and the likelihood of being affirmed. There will be several posts on the study and results. Today, I will provide some background on the dataset and a bit on the reversal rate. A draft of the paper, Practice Makes Perfect? An Empirical Study of Claim Construction Reversal Rates in Patent Cases, can be downloaded here.

The Dataset. First, a few brief words about the dataset. The dataset includes all decisions in which the parties disputed an issue of the district court's claim construction. It includes all decisions in an eleven year period, from April 23, 1996 (the date of the Supreme Court decision in Markman) until June 30, 2007. Those decisions – 952 of them – are all of the published and unpublished opinions, as well as all of the summary affirmances under Federal Circuit Rule 36.

Overall Reversal Rates. For the entire eleven year period, 38.2% of cases had at least one term wrongly construed. Moreover, 30.0% of the cases had to be reversed or vacated because of an erroneous claim construction. These results are largely consistent with those of an earlier study (by then-professor and now-Federal Circuit judge Kimberly Moore).

Reversal Rates by Judicial District. In later posts, I will present the reversal rates based upon the experience of the district court judges. Today's post presents the reversal rates aggregated by judicial district. Table II below identifies the number of Federal Circuit appeals from the most active judicial districts in terms of claim construction appellate decisions from April 1996 until June 2007. It also provides the percentage of cases that were vacated or reversed due to an erroneous claim construction. In the last column, I have provided the total number of patent lawsuits filed in those judicial districts, and in parenthesis, the rank of the judicial district if measured by the total number of patent lawsuits filed.

Table II: Most Active Judicial Districts on Appellate Claim Construction Experience: 1996-2007

Rank

Judicial District

# of Federal Circuit Claim Construction Appeals (1996-2007)

% of Claim Construction Appeals Reversed or Vacated because of Claim Construction Error

# of Patent Lawsuits Filed (1995-2005)

1

N.D. Cal.

84

28.6%

2613 (1)

2

C.D. Cal.

69

43.5%

2260 (2)

3

N.D. Ill.

65

26.2%

1509 (3)

4

D. Del.

54

22.2%

1112 (5)

5

S.D.N.Y.

45

28.9%

1184 (4)

6

D. Mass.

42

26.2%

782 (7)

7

D. Minn.

33

36.4%

743 (8)

8

E.D. Mich.

29

31.0%

669 (9)

9

D.N.J.

28

32.1%

952 (6)

10

E.D. Va.

27

22.2%

555 (14)

11

N.D. Tex.

21

42.9%

591 (11)

11

S.D. Tex.

21

23.8%

466 (19)

13

W.D. Wisc.

19

21.1%

232 (36)

14

W.D. Wash.

18

38.9%

475 (17)

14

D. Col.

18

27.8%

407 (23)

As is evident from the Table above, several of the busiest districts have reversal rates above the average rate of thirty percent. For example, the second busiest district in the country, as measured by either number of appeals or number of patent lawsuits handled, the Central District of California, has the highest reversal rate of claim construction. (Some may wonder why the Eastern District of Texas is not included in Table II. The trend of filing cases in the Eastern District of Texas began fairly recently, and as a result, many of the cases from the Eastern District of Texas have not had time to proceed through appeal. Consequently, the Eastern District of Texas is not one of the top fifteen districts in terms of appellate claim construction experience during the period 1996-2007.)

Up next: Reversal rates based on the number of claim construction cases previously appealed (i.e., the first case appealed from a particular district court judge, the second case appealed from a district court judge, etc.)

Comments are welcome!

Dec 26, 2007

Counting Design Patents

ScreenShot003

In 2007, Samsung Electronics received over 550 design patents — the most ever issued to a single company in one year.  Sony holds the most design patents, and is followed closely by Nike. The following table shows the company awarded the most design patents each year:

ScreenShot004Louis Zarfas is the primary examiner associated with the most issued design patents. Mr. Zarfas has allowed over 16,000 design patents since his first (as a primary) in 1978. Over 1,000 of those design patents relate to shoe designs claimed by companies such as Nike, Reebok, AVIA, Asics, LA Gear, Rockport, Sketchers, Wolverine, Keds, Louis Vuitton, Timberland, Berluti, and Kangaroos.

Recently issued design patents (issued 2000–2007) were, on average, pending for 16.2 months. Companies with at least 100 design patents during that period had about one month less pendency than those with fewer patents. Nike has prosecution down to a science — and averages less than 9 months pendency (filing to issuance). Toward the other end of the pendency chart, Apple averages over 21 months.

During the 2000–2007 period, approximately 75% of examinations were handled by primary examiners without any assistance from an assistant examiner. As with utility patents, the pendency for cases without an assistant is significantly less than for those with an assistant. Here, the difference is about two months.

 * These numbers are based on a recently compiled dataset of 300,000+ design patents issued since 1976 on file with DDC.

Dec 20, 2007

Does Size Matter? Counting Words in Patent Specifications

The following chart does not tell us whether the size of the patent document makes any difference. It only tells us that the average patent has grown considerably over the past twenty years.

ScreenShot002

To create the chart, I obtained a sample of 10,000 patents issued between January 1977 and December 2007 and counted the number of words in the description of the claimed invention. This excludes claims, title, abstract, references, and other identifying information.  To amplify the results, I added two trend-lines. The first trend-line runs from 1977 to 1987 and has essentially no slope — indicating that description size remained steady over those years. The second trend-line runs from 1987 – 2007 and has a clearly positive trend-line indicating that the number of words is increasing over time.

Nov 19, 2007

Reestablishing the Doctrine of Patent Exhaustion

By Mark R. Patterson* [PDF Version]

Quanta Computer, Inc. v. LG Electronics, Inc.[1], presents facts at the intersection of two legal rules. On the one hand, patentees are free to impose restrictions, such as field-of-use restrictions, when they license others to manufacture their patented products.[2] Such restrictions can be permissible even if they would be antitrust violations outside the patent context.[3] On the other hand, a patentee cannot restrict the use of its patented products once they are sold, whether the sale is by the patentee itself or by a licensee.[4] This is the exhaustion, or first-sale, doctrine. [Background on Quanta v. LGE]

 

The Federal Circuit has caused the first of these rules to swallow the second, by allowing a patentee to convert any sale into a license by imposing some sort of restriction in the transfer. The restriction makes the transfer a “conditional sale,” and the Federal Circuit has held that the exhaustion doctrine applies only to “unconditional sales.”[5] It has applied this rule, moreover, despite the Supreme Court’s application of the exhaustion doctrine to conditional sales.[6]

 

The Federal Circuit’s approach allows patentees to transform a wide range of otherwise permissible conduct into patent infringement. All the patentee needs to do is forbid that conduct in its “conditional sale” arrangement. The Federal Circuit itself suggested in Mallinckrodt that this could allow patentees to eliminate the right of repair, and indeed other courts have applied the approach to allow patentees to eliminate not only the right of reuse/repair,[7] but also the right to resell patented products.[8] More generally, as the American Antitrust Institute argues in its amicus brief, the elimination of the exhaustion doctrine leads to considerable uncertainty, as downstream purchasers cannot know whether their use of the product is permissible unless they ensure that upstream sellers were in compliance with any license restrictions.[9]

 

It seems probable that the Supreme Court will reverse or at least vacate the Federal Circuit’s Quanta decision. It is likely to hold that sales of patented products exhaust the patentee’s patent rights, as the Solicitor General and other amici argue that it should. The patentee could still impose limitations on buyers’ uses of the products, but those limitations would be solely matters of contract. They could not be enforced through patent infringement actions, and they would be subject to antitrust law limitations.

 

But this raises two questions. First, will the Court define the difference between a sale and a license for this purpose? Quanta and the Solicitor General appear to take the position that the distinction should turn on the transfer of title. A problem with that approach is that it would give patentees considerable opportunity to use formal differences in the transaction to alter what should be substantive rules. (The Solicitor General may be unconcerned about this. It discusses with apparent approval Mitchell v. Hawley, 83 U.S. 544 (1872), where the patentee arguably forbad its manufacturing licensee from selling the patented inventions, granting only the right “to license to others the right to use the said machines.” The Court in Mitchell allowed an infringement suit against the downstream users, though the case is somewhat peculiar because the infringement arose after the original patent term had been extended, when the license terms extended only to the end of the original patent term.)

 

An alternative sale-license distinction might focus on what is being transferred by the patentee. As the district court argued in Mallinckrodt, one can read the Supreme Court’s decisions to allow restrictions on manufacturing licensees but not on ultimate purchasers. This echoes a distinction drawn in Europe, where the EC’s technology transfer block exemption applies to exempt from antitrust scrutiny certain “technology transfer agreements entered into between two undertakings permitting the production of contract products.”[10] Sales of the products after they are produced are governed by another block exemption.[11] Under this view, it is in the manufacture of the product that the patentee’s technology is first used, and its rights exhausted.

 

One effect of the exhaustion doctrine is to make price-discrimination more difficult for the patentee. For example, if the patentee would prefer to sell at different prices to different users, an inability to enforce its patent rights downstream would make it more difficult for the patentee to prevent arbitrage. But the Supreme Court has not hesitated to place other practical limits on price-discrimination by patentees, as in disallowing tying arrangements, which prevents metering through sales of the tied products (though only for patentees with market power). Moreover, even when its patent rights are exhausted, a patentee can enter into contracts forbidding resale for arbitrage, but it can only enforce those contracts through breach-of-contract actions, not through patent infringement suits.

 

The second question is whether the exhaustion rule applies if, as in Quanta v. LG, the product sold is only a component of the patented invention, in that it does not itself satisfy all the claim elements. The Supreme Court has said yes, at least in some circumstances: “[W]here one has sold an uncompleted article which, because it embodies essential features of his patented invention, is within the protection of his patent, and has destined the article to be finished by the purchaser in conformity to the patent, he has sold his invention so far as it is or may be embodied in that particular article.”[12] This rule recalls, though is perhaps somewhat broader than, the contributory infringement doctrine. That is, if this were the rule, the exhaustion doctrine would apply where there has been an authorized sale of a product that would contributorily infringe if its sale were unauthorized.

 

But the Univis Court followed the statement quoted above with another: “The reward [the patentee] has demanded and received is for the article and the invention which it embodies and which his vendee is to practice upon it.” Id. at 251. The question in Quanta v. LG can be viewed as turning on whether this second statement from Univis is one of law or of fact. If it is interpreted as one of law, then the Court is saying that the patentee must get its returns in the sale of the component invention. If the statement is one of fact, then the Court may just be relying on a view that the defendant in Univis had in fact gotten the return to which it was entitled in that first sale. In other cases with different facts, the patentee might be able to use patent law to enforce downstream restrictions despite the upstream sale of a component of the patented invention.

 

For example, one can imagine cases in which the maker of the component at issue, like Intel in Quanta v. LG, would have concerns about contributory infringement claims and therefore would seek a license from the patentee. That seems particularly plausible if the component at issue could be resold, so that even if its maker (Intel) ensured that its customers had licenses from the patentee, others to whom they might resell the component might not. It could make sense for the patentee to grant a license to the component maker in this situation, and make the license apply to downstream purchasers, rather than to enter into licenses with each of those downstream purchasers. But perhaps there could be circumstances in which the patentee would like to price-discriminate by use among the downstream purchasers, so that licenses at each level would be desirable.

 

It will be interesting to see how, or if, the Supreme Court will resolve this issue. As noted above, it could simply say that the patentee must get its profits from the component maker. This would promote certainty in the downstream product markets and be conceptually consistent with contributory infringement law. On the other hand, it would be somewhat odd to require that patentees deal with contributory infringers rather than direct infringers. Moreover, it would place limits on the ability of patentees to price-discriminate, though, as noted above, the Court might not view that as an obstacle. But one could also take the view that where the downstream applications are significantly different, so as to make separate downstream licenses desirable, there should be separate downstream patents, and that the upstream product then would not be “especially made or especially adapted for use in an infringement of [any one of] such patent[s].”[13]

 

The Court might simply choose not to address this issue. It could, for example, just correct the Federal Circuit’s approach to the exhaustion doctrine and then direct the Federal Circuit to address it.[14] That approach might look particularly attractive in that the LG-Intel license itself includes a provision that calls for application of the exhaustion doctrine: “Notwithstanding anything to the contrary contained in this Agreement, the parties agree that nothing herein shall in any way limit or alter the effect of patent exhaustion that would otherwise apply when a party hereto sells any of its Licensed Products.”

 

A final issue is that of LG’s method claims. The Federal Circuit held that “the sale of a device does not exhaust a patentee’s rights in its method claims.” As Quanta’s brief describes, this holding is inconsistent with Supreme Court decisions and even with other decisions by the Federal Circuit. Generally speaking, method claims that would be contributorily infringed by an unauthorized sale of a product should be exhausted by an authorized sale of the product. But if the method at issue goes beyond the normal use of the product at issue, so that the product arguably does not contributorily infringe the method patent, as suggested above for downstream product patents, it seems that exhaustion should not occur.

 

The Federal Circuit’s cases beginning with Mallinckrodt and continuing through Quanta have allowed patentees to use contract, or even simply unilateral notice, to eliminate the application of the exhaustion doctrine. By simply prohibiting certain conduct in their “license” agreements, patentees can under current Federal Circuit law transform what would be permissible conduct into patent infringement. The Supreme Court, however, said in Univis that “sale of [a patented article] exhausts the monopoly in that article and the patentee may not thereafter, by virtue of his patent, control the use or disposition of the article.” The Court’s forthcoming decision will likely reestablish that rule.

 


* Mark Patterson is a Professor of Law at Fordham University School of Law . His article on field-of-use licensing was recently published in the William & Mary Law Review. Mark R. Patterson, Contractual Expansion of the Scope of Patent Infringement Through Field-of-Use Licensing, 49 Wm. & Mary L. Rev. 157 (2007).

 

Preferred Citation: Mark R. Patterson, Reestablishing the Doctrine of Patent Exhaustion, 2007 Patently-O Patent L.J. 38, http://www.patentlyo.com/lawjournal.

 

[1] Supreme Court Docket No. 06-937. Oral arguments are scheduled for Wednesday, January 16, 2008. http://www.supremecourtus.gov. For background on the particular issues, see, Dennis Crouch, Supreme Court to Decide Patent Exhaustion Case, Patently-O (Sept. 25, 2007) at http://www.patentlyo.com/patent/2007/09/supreme-court-t.html 

[2] General Talking Pictures Corp. v. Western Electric Co., 304 U.S. 175 (1938).

[3] United States v. General Electric Co., 272 U.S. 476 (1926). 

[4] Adams v. Burke, 84 U.S. 453 (1873); Motion Picture Patents Co. v. Universal Film Manufacturing Co., 243 U.S. 502 (1917), United States v. Univis Lens Co., 316 U.S. 241 (1942).

[5] Mallinckrodt, Inc. v. Medipart, Inc., 976 F.2d 700 (Fed. Cir. 1992). 

[6] Motion Picture Patents 243 U.S. 502; Univis Lens. 316 U.S. 241.

[7] Arizona Cartridge Remanufacturers Association, Inc. v. Lexmark International, Inc., 290 F. Supp. 2d 1034 (N.D. Cal. 2003), aff’d, 421 F.3d 981 (9th Cir. 2005).

[8] Pioneer Hi-Bred International, Inc. v. Ottawa Plant Food, Inc., 283 F. Supp. 2d 1018 (D. Iowa 2003). 

[10] Commission Regulation 772/2004 on the application of Article 81(3) of the Treaty to categories of technology transfer agreements, O.J. L 123/11, art. 2 (2004), http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32004R0772:EN:NOT. 

[11] Commission Regulation 2790/1999 of 22 December 1999 on the application of Article 81(3) of the Treaty to categories of vertical agreements and concerted practices, O.J. L 336/21 (1999), http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:31999R2790:EN:NOT.

[12] Univis Lens, 316 U.S. at 250–51.

[13] 35 U.S.C. § 271(c). 

[14] Cf. KSR Int'l Co. v. Teleflex Inc., 127 S. Ct. 1727 (2007); eBay Inc. v. MercExchange, L.L.C., 126 S. Ct. 1837 ( 2006).

 

 

Notes:

 

James B. Kobak, Jr., Contracting Around Exhaustion: Some Thoughts About the

CAFC’s Mallinckrodt Decision, 75 J. Pat. & Trademark Off. Soc’y 550 (1993).

 

Mark R. Patterson, Contractual Expansion of the Scope of Patent Infringement Through

Field-of-Use Licensing, 49 Wm. & Mary L. Rev. 157 (2007).

 

Richard H. Stern, The Unobserved Demise of the Exhaustion Doctrine in U.S. Patent

Law: Mallinckrodt v. Medipart, 15 Eur. Intell. Prop. Rev. 460 (1993).

 

Oct 02, 2007

Consideration of Delayed Injunctive Relief Demanded by CAFC

The recent Verizon v. Vonage majority opens the door to an expanded use of what I would call delayed injunctive relief.  In particular, the two-member majority (JJ Dyk & Gajarsa) explains in Footnote 12 that the district court “should have” considered whether to allow the adjudged infringer Vonage more time to implement a workaround before enforcing an injunction.

“One factor that is relevant to the balance of the hardships required by the Supreme Court’s decision in eBay was not considered by the district court, namely whether the district court should have allowed time for Vonage to implement a workaround that would avoid continued infringement of the ’574 and ’711 patents before issuing its injunction.”

The appellate panel also notes that Verizon’s interest in putting Vonage “out of business” is not a legitimate interest — rather, the court’s obligation is to protect Verizon’s patent interests without disrupting other business activity.

“Verizon had a cognizable interest in obtaining an injunction to put an end to infringement of its patents; it did not have a cognizable interest in putting Vonage out of business.”

Historically, a finding of patent infringement resulted in a relatively quick form of complete injunctive relief requiring that any adjudged infringement cease immediately.  The Supreme Court’s EBay v. MercExchange opinion considered injunctive relief a yes/no decision — either an injunction is granted or denied based on the traditional four-factor analysis.  Here, the CAFC appears to be reformulating debate to focus on a timing question —  i.e., if not now, at what point will the four-factors favor the patent holder?

In this case, the Court’s words are relegated to a footnote because Vonage never requested a workaround period.  And, in addition, sufficient time has already passed since the verdict.

“Vonage made no request for a workaround period to the district court, and Vonage has already had several months since the district court’s judgment to implement a workaround.”

Sep 17, 2007

How long does a BPAI appeal take?

PatentLawPic037In the first two weeks of September 2007, the Board of Patent Appeals and Interferences released over one hundred opinions. I looked at the file wrapper histories of thirty of these recent BPAI decisions to get some picture of the timing of BPAI appeals.

On average it took just under 18 months (542 days) from the filing of the appeal brief until a decision was reached by the BPAI.  The mean hides a wide range of delay: From a minimum of 9 1/2 months to a maximum of 44 months. (Standard Deviation 255). 

Most of the time delay is not attributable directly to the BPAI. Rather, most of the delay occurs between the date that the appeal is filed and the date that the case is submitted to the BPAI.  On average, it took about 11 months (328 days) to ‘complete briefing.’ Typically, that time period involves the applicant’s brief; followed by an examiner’s answer; and finally a reply brief. Once the case is submitted to the BPAI, the average decision time was seven months (214 days).

If you win an appeal, the Examiner may reopen prosecution with an additional rejection, although the more common approach is to issue a notice of allowance.

Based on this information, you can advise clients that an appeal – pushed through to the end – takes an average of 18 months, but that there is a wide variance.  As I noted earlier in 2007, only fewer than of appeals are pushed-through to the end. [Link].  In many cases, Examiners withdraw rejections or applicants file RCE’s with new claims. These calculations also do not include time delays associated with BPAI rejections for improper appeal brief form. Instead, I only began counting once a ‘proper’ brief was filed. In an earlier study, I showed that approximately 25% of appeal briefs are rejected on procedural grounds as either defective or incomplete. [Link].

The prosecution history of a patent application typically includes at least two substantive rejections prior to the appeal brief. In this sample, the average application had been in process for over three years (39 months) before the appeal brief was filed. 

As with essentially every other area of patent law, we can expect that BPAI timing and results will vary by technology area.

Notes:

Sep 14, 2007

Patently-O Tidbits

Aug 19, 2007

2007 Patent Litigation: Timing the Transition from Patent Issuance to Patent Litigation

In the past, I have filed patent infringement lawsuits on the same day that the patent issued.  That highly aggressive strategy is not the only approach — many patentees delay years before filing suit.

In order to determine how long patentees usually delay before filing suit, I pulled-up all twenty-one hundred US patents that have been asserted in patent litigation or reexamination cases in 2007. (Restricted to lawsuits filed 1/1/2007 to 8/15/2007 notice of litigation had been filed with the USPTO). 

For cases filed in year 2007, the ‘average’ patent issued seven years ago in 2000. The median issue year was 2001 — a six year delay in filing.  The histogram below provides an idea of the distribution of the number of years between patent issuance and commencement of litigation for the 2007 lawsuits.

Although most lawsuits are filed by the time a patent is six years old, it is striking that about twenty-five percent of the patents in the 2007 lawsuits are more than a decade old.

ScreenShot016

Aug 09, 2007

Overall, has your company made money from the patent system?

On August 7–8, 2007, I conducted a simple survey through Patently-O. [See Survey].  Readers were asked whether the patent system, taken as a whole, had been positive (made money) or negative (lost money) for their company.  The results below show the responses of 131 corporate employees who are all highly involved with their company patents.

The results here follow a predictable pattern: On average, pharmaceutical companies see patents as a profit center while software companies see patents as an overall loser.  (At 95%CI, Software & EE results each differ significantly from Pharm results).

PatentLawPic010

Notes:

  • Next time: Is this an important question?
  • The Survey [LINK]
  • Bessen & Meurer: Negative Return on the Patent System
  • On the process:
    • The above graph merges responses from small corporations with those from large corporations. It also excludes individuals at law firms, government entities, and educational institutions. 
    • Individuals responded to the question: “Overall, has your company made money from the patent system?”  There were three potential responses: “Clearly positive (made money”, “Unsure whether positive or negative”, and “Clearly negative (lost money).” For the graph above, these responses were converted to a simple numerical scale: 1, 0, and -1, respectively. The y-axis above ranges from -1 to 1.

Aug 03, 2007

Sarnoff: Granting Patents Immunity from Market Regulation is Neither Warranted Nor Sensible

ScreenShot009In the most recent Patent Law Journal article, Professor Joshua Sarnoff discusses implications of BIO v. DC. He opens with the following:

In Biotechnology Industry Organization v. District of Columbia,  the U.S. Court of Appeals for the Federal Circuit took another big step toward assuring that a granted patent conveys immunity from market regulation. 

Professor Sarnoff then explains why granting such immunity is “neither warranted nor sensible.”

Dec 21, 2006

Women as Patentees

Patents are intended to lure potential inventors into the business of innovation.  The truth is, however, that very little is known about how patents really drive innovation.

Historically, only a very