Zydus Not Infringing Lansoprazole ODT Particle Size Claim

03.29.14 Posted in Federal Circuit Opinions by

Contact the author: Andrew Berks Takeda Pharm. Co. Ltd. v. Zydus Pharms. USA, Inc., No. 2013-1406 (Fed. Cir. 2/20/2014) This Hatch-Waxman case pertains to particle size claims for the brand name drug Prevacid® SoluTab™. The product is an orally dissolving tablet (ODT) containing lansoprzaole. Only claim 1 of US6328994 is in dispute, which reads, in relevant […]


Wyeth’s expansive claim construction results in finding of non-enablement

01.04.14 Posted in Federal Circuit Opinions by

Contact the author: Andrew Berks Patents on rapamycin for restenosis held invalid for lack of enablement. Wyeth v. Abbott Laboratories, 720 F.3d 1380 (Fed. Cir. 2013). Wyeth sued defendants for patent infringement. Defendants counterclaimed that the patents were invalid as not enabled and for lack of written description.  The specification disclosed only one rapamycin species (sirolimus). The alleged […]


Sloppy Claim Drafting Invalidates Teva Copaxone Claims

08.27.13 Posted in Federal Circuit Opinions by

Teva Pharms. USA, Inc. v. Sandoz, Inc.,, No. 2012-1567 (Fed. Cir. 7/26/2013) (no reporter cite) (Rader, Moore, and Benson (sitting by designation from the District of Utah). Opinion by Moore. Teva sued Mylan and Sandoz for patent infringement of nine patents covering copolymer-1, marketed by Teva as “Copaxone®” for the treatment of multiple sclerosis. Copolymer-1 […]


Ariad v. Lilly: Federal Circuit Upholds Separate Written Description and Enablement

03.20.11 Posted in Federal Circuit Opinions by

In an en banc decision, the majority opinion of the Federal Circuit affirmed, in Ariad Pharms., Inc. v. Eli Lilly Co., that there are separate written description and enablement requirements in 35 U.S.C. § 112 first paragraph, and that the requirement applies to original claims as well as amended claims. (598 F.3d 1336 (No. 2008-1248) […]


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