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. 10, 2026
Filed:
Nov. 30, 2021
Applicant:
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
Inventors:
Sankaran Murugesan, Katy, TX (US);
Mary Jane Legaspi Felipe, Sugar Land, TX (US);
Jerry J. Weers, Richmond, TX (US);
Onome Ugono, Rosenberg, TX (US);
Kekeli A. Ekoue-Kovi, Rosenberg, TX (US);
Sai Reddy Pinappu, Sugar Land, TX (US);
Assignee:
Baker Hughes Oilfield Operations LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/68 (2023.01); C02F 1/44 (2023.01); C02F 101/10 (2006.01); C22B 26/12 (2006.01);
U.S. Cl.
CPC ...
C02F 1/683 (2013.01); C02F 1/44 (2013.01); C02F 1/68 (2013.01); C22B 26/12 (2013.01); C02F 2101/10 (2013.01);
Abstract
A method for selective extraction of lithium from geothermal brines using host-guest complexes of host molecules such as calixarene, dendrimeric polymers, hyper-branched polymers, and/or acid-catalyzed resins complexed with synergists such as organic acids, condensation polymers, olefin/maleic anhydride copolymers, and/or chelants.