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Judge Andrews construes claim terms in ANDA case

In Warner Chilcott Company, LLC v. Zydus Pharmaceuticals (USA) Inc., et al., C.A. No. 11-1105-RGA (D. Del. Apr. 22, 2013), Judge Richard G. Andrews construed the following disputed terms of U.S. Patent No. 6,893,662, which “relates to formulations and methods of delivering mesalamine to the lowest part of the gastrointestinal tract, especially the colon,” id. at 1:

-“Inner coating layer” and “outer coating layer,” id. at 3-4;
-“The inner coating layer is not the same as the outer coating layer,” id. at 5-7;
-“Selected from the group consisting of,” id. at 7-10;
-“Polymethacrylates” and “anionic polymethacrylates,” id. at 10-12;
-“Poly(methacrylic acid, methyl methacrylate) 1:2” and “poly(methacrylic acid,
methyl methacrylate) 1:1” id. at 12-14;
-“Enteric polymer,” id. at 14-15;
-“Mixtures,” id. at 15-17; and
-“The outer coating layer is applied after the inner coating layer but before the inner
coating layer is dried or cured,” id. at 17-18.

Warner Chilcott Company, LLC v. Zydus Pharmaceuticals (USA) Inc., et al., C.A. No. 11-1105-RGA (D. Del. Apr…

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