(October 3, 2019, 10:07 AM EDT) -- WASHINGTON, D.C. — In a Sept. 11 appellant brief, LiquidPower Specialty Products Inc. (LSPI) accuses the Patent Trial and Appeal Board of committing “the exact same error” in three inter partes reviews (IPRs) that already led to one remand by the Federal Circuit U.S. Court of Appeals in a case involving a related patent (LiquidPower Specialty Products Inc. v. Baker Hughes, No. 19-1838, Fed. Cir.)....