The Federal Circuit affirmed the validity of Forest Laboratories’ escitalopram (Lexapro) patent, holding the single-enantiomer antidepressant non-obvious over the known racemic citalopram — with the critical role played by unexpected superior pharmacological properties of the isolated (+)-enan
In one of the first major post-KSR Federal Circuit obviousness decisions, the court upheld the non-obviousness of Takeda’s pioglitazone (Actos) patent, applying the Supreme Court’s flexible obviousness framework while affirming that selection from a genus of prior art compounds requires
In one of the first post-KSR Federal Circuit obviousness decisions, the court invalidated Leapfrog’s patent on an electronic phonics learning toy as obvious, holding that it would have been obvious to combine the mechanical toy’s learning concept with electronic text-to-speech technology
The Federal Circuit reversed a district court’s obviousness finding in a Hatch-Waxman pharmaceutical case, holding that the court had improperly defined the level of ordinary skill in the art — which significantly affected the obviousness analysis for an antibiotic ear drop formulation patent
The Federal Circuit reversed a district court’s validity ruling and held that Pfizer’s patent covering amlodipine besylate (Norvasc) was invalid for obviousness, finding that selecting the besylate salt of amlodipine was routine pharmaceutical testing that any skilled chemist would have
The Federal Circuit addressed the requirements for functional claim limitations in software-implemented gaming machine patents, reinforcing that functional language in claims must be supported by adequate structural or algorithmic disclosure in the specification — a key ruling on the § 112 disclosur
The Federal Circuit sitting en banc resolved a circuit split and held that induced infringement under 35 U.S.C. § 271(b) requires proof that the defendant specifically intended to cause direct infringement — not merely that it intended to perform acts that happen to constitute infringement.
The Federal Circuit reversed a finding of obviousness in a spinal implant patent case, holding that the district court failed to identify a sufficient motivation or reason why a person of ordinary skill would have combined the cited prior art references — possibility of combination is not enough; th
The Federal Circuit held a textile dye process patent invalid as obvious, clarifying that the teaching-suggestion-motivation (TSM) test for obviousness is flexible and allows motivation to combine to be found in common knowledge, common sense, and efficiency goals — not just explicit documentary evi
The Federal Circuit invalidated Align Technology’s patents on incremental orthodontic aligners as obvious over prior art, holding that packaging convenience and commercial success driven by aesthetic and unclaimed features cannot overcome a prima facie case of obviousness.