The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2025
Filed:
May. 13, 2021
Liquidpower Specialty Products Inc., Houston, TX (US);
Wayne R. Dreher, Germantown, TN (US);
Kenneth W. Smith, Tonkawa, OK (US);
Stuart N. Milligan, Ponca City, OK (US);
Timothy L. Burden, Ponca City, OK (US);
William F. Harris, Palm Harbor, FL (US);
Ray L. Johnston, Ponca City, OK (US);
Wolfgang Klesse, Aschaffenburg, DE;
Gerold Schmitt, Aschaffenburg, DE;
John Wey, East Brunswick, NJ (US);
LiquidPower Specialty Products Inc., Houston, TX (US);
Abstract
A flow improver comprising a plurality of core-shell particles that can be formed by emulsion polymerization. The core of the core-shell particles can include a drag reducing polymer, while the shell of the particles can include repeat units of a hydrophobic compound and an amphiphilic compound. The flow improver can demonstrate increased pumping stability over conventionally prepared latex flow improvers.