IMPAX LABORATORIES INC. v. LANNETT HOLDINGS INC.

2017-2020.

893 F.3d 1372 (2018)

IMPAX LABORATORIES INC., AstraZeneca AB, AstraZeneca UK Limited, Plaintiffs-Appellees v. LANNETT HOLDINGS INC., Lannett Company Inc., Defendants-Appellants.

United States Court of Appeals, Federal Circuit.

Decided: June 28, 2018.


Attorney(s) appearing for the Case

JAMES F. HURST , Kirkland & Ellis LLP, Chicago, IL, argued for plaintiffs-appellees. Also represented by MARCUS EDWARD SERNEL .

JOSEPH F. POSILLICO , Fox Rothschild, LLP, Philadelphia, PA, argued for defendants-appellants. Also represented by FRANK T. CARROLL ; MICHAEL W. GLYNN , New York, NY.

Before Lourie, Dyk, and Taranto, Circuit Judges.


Lannett Holdings Inc. and Lannett Co. Inc. (together, "Lannett") appeal from the decision of the United States District Court for the District of Delaware concluding, after a bench trial, that claims 4, 11, 12, and 14 of U.S. Patent 6,750,237 ("the '237 patent") and claims 6 and...

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