SUMITOMO DAINIPPON PHARMA CO. v. EMCURE PHARMA, 17-1798, 17-1799, 17-1800, decided April 16, 2018

U.S. Patent No. 5,532,372, directed to imide compounds. The claim recited a molecular structure argued to be a racemic mixture (50-50) of two enantiomers based on similarity to a compound in the specification (page 6).  The plain claim language and specification indicate that the claim at least covers the (-)enantiomer (pages 7-8).  The specification does […]