Nonobviousness

IPCentral has an ongoing discussion of the nonobviousness requirement of patentability. They quote one of my favorite law school professors (John Duffy).

[T]he Supreme Court … has not heard a case involving the nonobviousness doctrine in more than a quarter century. I recently gave a presentation at a patent reform conference in which I gave reasons why this drought may end very soon. Many people are not satisfied with the state of the law concerning nonobviousness.

Specifically, many are arguing that nonobviousness is taken much too lightly by the Federal Circuit.