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:
Oct. 23, 1990
Filed:
Feb. 23, 1990
Applicant:
Inventors:
Toshihiko Maeda, Kanagawa, JP;
Noriaki Yoshimura, Okayama, JP;
Assignee:
Kuraray Company, Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562 35 ;
Abstract
There is provided an industrial process for the advantageous preparation of high-purity lithium diphenylphosphinobenzene-m-monosulfonate.