Mealey's (October 7, 2016, 9:56 AM EDT) -- ALEXANDRIA, Va. — A claimed method of introducing a drag-reducing polymer into a pipeline carrying a liquid hydrocarbon “was not new” and would have been obvious to one of ordinary skill in the art, Baker Hughes Incorporated asserts in an Oct. 6 petition for inter partes review by the Patent Trial and Appeal Board (Baker Hughes Incorporated v. Lubrizol Specialty Products Inc., No. IPR2016-01896, PTAB)....