The following table lists the patents asserted most often in patent infringement litigation since January 2005.
- Patent No. 5,790,512. Asserted by electronics giant Koninklikje Philips in 29 separate lawsuits.
- Patent Reissue No. 38,014. Asserted by Mag Instruments in 29 separate lawsuits.
- Patent No. 5,313,229. Asserted by F&G Research in 24 separate lawsuits.
- Patent No. 4,792968. Asserted by Ron Katz in 19 separate lawsuits.
- Patent No. 6,766,304. Asserted by Trading Technologies in 17 separate lawsuits.
- Patent No. 5,352,605. Asserted by Monsanto in 17 separate lawsuits.
- Patent No. 6,241,739. Asserted by Altair Instruments in 16 separate lawsuits.
Interestingly, only two of these patents appear to be controlled by non-practicing entities.
(From Westlaw Patent Litigation Data)
