On summary judgment, the United States District Court for the Southern District of New York found in favor of plaintiffs Eisai Co., Ltd. and Eisai, Inc. (collectively Eisai) with respect to the validity and enforceability of U.S. Patent No. 5,045,552 (’552 patent). Eisai Co. v. Teva Pharms. USA, Inc., No. 03 Civ. 9223 (S.D.N.Y. Oct. 5, 2006) (SJ Validity Order); Eisai Co. v. Dr. Reddy’s Labs., Ltd., No. 03 Civ. 9053 (S.D.N.Y. Oct. 5, 2006) (SJ Enforceability Order). After a bench trial, the district court found that Dr. Reddy’s Laboratories, Ltd. and Dr. Reddy’s Laboratories, Inc. (collectively Dr. Reddy’s) and Teva Pharmaceuticals USA, Inc. (Teva) had failed to prove the remaining allegations of inequitable conduct, and that Eisai had established that Dr. Reddy’s and Teva infringed Eisai’s ’552 patent. Eisai Co. v. Dr. Reddy’s Labs, Ltd., No. 03 Civ. 9053 (S.D.N.Y. May 11, 2006) (Trial Order). Because the district court correctly determined that the ’552 patent is non-obvious over the proffered prior art and that Eisai’s alleged acts during prosecution did not rise to the level of inequitable conduct, this court affirms.
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