Utility Patent

The Federal Circuit sitting en banc held that 35 U.S.C. § 112 contains a written description requirement that is distinct from the enablement requirement, and invalidated a broad genus patent covering all substances that inhibit NF-κB activity because the patent described the goal but not the means.

The Federal Circuit affirmed a $200 million jury verdict and permanent injunction against Microsoft for infringing i4i’s patent on a method for editing custom XML in word processing documents, rejecting Microsoft’s invalidity defense premised on a prior-sold product and upholding the cle

The Federal Circuit vacated a patent damages award and held that a reasonable royalty calculation must rely on licenses that are technologically and economically comparable to the patent at issue — rejecting a royalty rate derived from re-bundling agreements that had no connection to the claimed inv

The Federal Circuit affirmed summary judgment of invalidity of a patent on a method for bulk email delivery, holding the claims obvious under post-KSR standards where the claimed process involved only routine, predictable steps well within the common sense of a person with ordinary skill in email ma

The Federal Circuit largely affirmed that Roche’s pegylated erythropoietin product Mircera infringed four of Amgen’s EPO patents, but vacated the district court’s double-patenting rulings and remanded for additional analysis — a significant ruling in the long-running battle over th

The Federal Circuit vacated a $1.5 billion patent damages award against Microsoft, holding that the jury’s royalty base improperly relied on the entire market value of Microsoft’s products — including features unrelated to the patented invention — without proof that the patented feature

The Federal Circuit en banc held that the traditional four-factor preliminary injunction test applies in Hatch-Waxman patent cases — eliminating the prior practice under which a showing of validity and infringement created a presumption of irreparable harm — and remanded the preliminary injunction a

The Federal Circuit addressed the joint infringement problem in method patent claims — holding that when multiple parties each perform different steps of a claimed method, infringement requires that one party direct or control the actions of the other parties performing the remaining steps, setting

The Federal Circuit held that a patent application claiming an isolated DNA sequence encoding the NAIL protein receptor was obvious under KSR — where the prior art disclosed both the protein and routine methods of cloning its encoding gene — marking an important application of KSR’s flexible o