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Shire Development v. Watson Pharmaceuticals: Markush Claiming

February 10, 2017| in Wegner's Writings| by Hal Wegner

Today in Shire Development, LLC v. Watson Pharmaceuticals, Inc., __ F.3d __, No. 2016-1785 (Fed. Cir. Feb. 10, 2017)(Hughes, J.), in a validity challenge to claims defining one particular component of a chemical invention as a Markush group, the appellate panel overturned a District Court ruling to invalidate the relevant claims.

Shire Development involves a unique factual situation where a particular Markush group is defined in a manner that excludes the exemplary support for the Markush group.

ShireFeb10MarkushFULL

Regards,
Hal

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