Fed. Circ. Oil Tech Patent Ruling Drills Down On Indefiniteness

By Lowell Mead, Dena Chen and Patrick Lauppe (February 6, 2023, 3:30 PM EST) -- A recent oil drilling patent case represents an unusual move for the U.S. Court of Appeals for the Federal Circuit. In the Jan. 12 Grace Instrument Industries LLC v. Chandler Instruments Co. decision, the Federal Circuit vacated the U.S. District Court for the Southern District of Texas' ruling that patent claims were indefinite and expressly construed the challenged claim term.[1]...

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