Tag Archives: Secondary Considerations

Obviousness Versus Obviousness-Type Double Patenting

In Prometheus Laboratories, Inc. v. Roxane Laboratories, Inc., the Federal Circuit affirmed the district court’s finding that Prometheus’ claims were invalid as obvious, but in so doing it cited its own precedent regarding obviousness-type double patenting. Is the court blurring the line between these doctrines? … Continue reading this entry

Simultaneous Invention As Secondary Evidence Of Obviousness

I do not usually write about non-precedential Federal Circuit decisions, but I could not let the discussion of “simultaneous invention” in Columbia University v. Illumina, Inc., go without comment. As if protecting patents from a hindsight-based determination of obviousness is not challenging enough, this theory holds that subsequent invention by another relatively soon after the invention … Continue reading this entry

Federal Circuit Invalidates Galderma Differin Patents

In Galderma Laboratories v. Tolmar, Inc., the Federal Circuit reversed the district court’s findings that the Orange Book-listed patents for Galderma’s Differin® 0.3% gel product were not invalid as obvious. In so doing, the Federal Circuit took a narrow view of “unexpected results” that Judge Newman warns may “disincentivize” improvement patents in the field of … Continue reading this entry