Federal Circuit Rejects Request for Fresinius Rehearing En Banc

The Federal Circuit recently rejected Baxter International’s request for an en banc rehearing of the Federal Circuit’s decision from July voiding Baxter’s infringement award against Fresinius USA after a jury finding in Baxter’s favor. The case involved the question of whether a reexamination decision of invalidity by the PTO trumps a district court decision upholding […]

Despite Claims To The Contrary, Secondary Considerations Have Not Taken On Primary Significance

Recently, some commentators have suggested that the Federal Circuit has increased the significance of the role secondary considerations play in obviousness determinations.  This claim, however, appears to be misplaced. One case used to justify a claim of the change in the law is Transocean Offshore Deepwater Drilling Inc. v. Maersk Contractors, 617 F.3d 1296 (Fed. […]

Validity affirmed for patents related to salt formation

A 3-judge panel of the Federal Circuit (Federal Circuit Judges Timothy Dyk, Kathleen O’Malley and Evan Wallach) affirmed an appeal of a Southern District of Florida decision from Watson Pharmaceuticals, Inc.  The per curiam order affirmed a 2011 decision that found valid Valeant’s four patents covering a particular salt formation of the antidepressant bupropion.  No. 10-20526, […]

Federal Circuit Clarifies What the “Product” Is In Para IV Infringement Litigation

The Federal Circuit recently issued an opinion that reminds us of the importance of being consistent in our statements to the FDA and in patent matters.  What matters for the sake of infringement analysis is the product specified in the ANDA filing. The case, Sunovion Pharmaceuticals., Inc. v. Teva Pharmaceuticals USA, Inc. et al. (Fed. […]

Does Prior Art Lose Significance with Time?

In Leo Pharmaceutical Products, Ltd. v. Rea (Fed. Cir. Aug. 12, 2013), the Federal Circuit by Judge Rader, with Judges O’Malley and Reyna, found Patent No. 6,753,013 non-obvious, reversing a decision by the Board of Patent Appeals and Interferences.  Significantly, the opinion implies that prior art loses its significance for obviousness determinations with time. The […]

Alternative Fee Arrangements for Paragraph IV Litigation

Everyone who works in the pharmaceutical area has heard of the patent cliff for blockbuster pharmaceuticals.  The patent cliff has caused generic pharmaceutical companies to re-think how they approach litigation.  With potential profits being less, generic pharmaceutical companies are looking for ways to save costs.  One key cost of a generic drug entry is the […]

Federal Circuit Clarifies Use of Common Sense to Support the Combination of References to Arrive at Obviousness and the Role of “Secondary” Considerations in the Obviousness Inquiry

The Federal Circuit recently expanded the role of secondary considerations, or objective indicia, of non-obviousness in the obviousness calculus.  In Plantronics, Inc. v. Aliph, Inc., the district court held claims directed to a headset stabilizer invalid as obvious.   No. C09-1714, 2012 U.S. Dist. LEXIS 40172 (N.D. Cal. Mar. 23, 2012).  On appeal, the Federal Circuit […]

District Court Holds That 271(e)(1) Safe Harbor Protects Post-Filing Activities

A Massachusetts district court has granted summary judgment in favor of defendants Amphastar and Teva in a suit over a quality-control method patent for manufacture of the anticoagulant enoxaparin. The two related suits were filed by plaintiff Momenta Pharmaceuticals, the first generic manufacturer of enoxaparin.  Momenta Pharm., Inc. v. Amphastar Pharm., Inc., No. 11-11681 (D. […]