Celgard, LLC v. LG Chem, Ltd., No. 14-1675 (Fed. Cir. Aug. 12, 2015)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

Celgard, LLC (“Celgard”) brought suit against LG Chem, Ltd. and LG Chem America, Inc. (collectively, “LG”) in the United States District Court for the Western District of North Carolina, asserting infringement of certain claims of U.S. Patent No. 6,432,586 (“the ’586 patent”) and several state law claims. LG appeals the district court’s entry of a preliminary injunction prohibi t- ing LG from making, using, selling, or offering for sale its products that potentially infringe the asserted claims in the ’586 patent.