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:
May. 19, 2026
Filed:
Oct. 27, 2021
Applicant:
Hanwha Solutions Corporation, Seoul, KR;
Inventors:
Gyeongseon Jeong, Daejeon, KR;
Shinbeom Lee, Daejeon, KR;
Junhee Han, Daejeon, KR;
Keedo Han, Daejeon, KR;
Assignee:
HANWHA SOLUTIONS CORPORATION, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/50 (2006.01); B01D 3/34 (2006.01); B01D 11/04 (2006.01);
U.S. Cl.
CPC ...
C07F 9/5022 (2013.01); B01D 3/346 (2013.01); B01D 11/0488 (2013.01); B01D 11/0492 (2013.01); C07F 9/5054 (2013.01); C07F 9/5095 (2013.01);
Abstract
Provided is a method of preparing sulfonated aryl phosphine, the method capable of preparing sulfonated aryl phosphine with high purity and high yield by efficiently removing sulfur trioxide generated during preparing sulfonated aryl phosphine using an extractant.