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Congratulations to CNPC USA - Polymer System for Fluid Loss Control

Posted by William P. Ramey III | Mar 02, 2020 | 0 Comments

Ramey & Schwaller wishes to congratulate its client CNPC USA on issuance of U.S. Patent Number 10,280,354 titled Polymer System for Fluid Loss Control on May 7, 2019. The patent relates to 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.

Ramey & Schwaller is a full-service intellectual property law firm working with an international client base from our Houston, Texas office. We are dedicated to enhancing client results through efficient practice management, innovative technologies and skilled professionals.


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William P. Ramey III

Managing Partner; Office: Houston


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