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:
Apr. 26, 1994
Filed:
Oct. 15, 1992
Applicant:
Inventors:
Sharon M Beshouri, Houston, TX (US);
Robert P Adamski, Missouri City, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549478 ;
Abstract
Polyol impurities in a sorbitan ester mixture is removed by treating a polyol-containing sorbitan ester dissolved in a solution containing a hydrocarbon and a polar organic solvent with an aqueous metal halide salt solution.
Beshouri, Sharon. (1994). Sorbitan ester purification process (U.S. Patent No. 5306831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5306831
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile