Ramey & Schwaller wishes to congratulate its client CNPC USA CORPORATION on issuance of US Patent # 10,907,083 titled POLYMER SYSTEM FOR FLUID LOSS CONTROL on February 2, 2021. The patent is based on a combination of three polymers including a crosslinked acrylamide-TBAS copolymers in inverse emulsion form, N-vinyl pyrrolidone-acrylamide-TBAS terpolymer, and crosslinked N-vinyl pyrrolidone-acrylamide-TBAS acts as high temperature, high pressure fluid loss control additives for water-based drilling fluids systems. The combination is particularly useful for high salt, high density drilling fluids, and high temperature applications.
Ramey & Schwaller is a full-service intellectual property law firm working with a national client base from our Houston, Texas office. We are dedicated to enhancing client results through efficient practice management, innovative technologies and the use of skilled professionals.
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