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January 12, 2023

Grace Instruments Industries LLC v. Chandler Instruments Company, LLC et al.


In early 2023, B&L prevailed at the United States Court of Appeals for the Federal Circuit on behalf of client Grace Instruments.  reversed the District Court’s final judgment in a patent infringement case.

The District Court had previously found the term “enlarged chamber” of Grace’s asserted patent-in-suit, U.S. Patent No. 7,412,877, invalid as indefinite under 35 U.S.C. § 112, ¶2.  The Federal Circuit panel disagreed, reversing the District Court’s invalidity decision, and reinstated the validity of Grace Instruments’ patent-in-suit.

See Grace Instr. Indus., LLC vs. Chandler Instr. Co, LLC et al., 57 F.4th 1001 (Fed.Cir. 2023).