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:
Feb. 05, 1991
Filed:
Sep. 11, 1989
Applicant:
Inventors:
Jean-Pierre Barthole, Elbeuf, FR;
Jean Filippi, Le Peage de Roussillon, FR;
Aurelia Jaeger-Seddik, Paris, FR;
Isidore Le Fur, Thiais, FR;
Jean-Yves Pommier, Paris, FR;
Assignee:
Rhone-Poulenc Sante, Antony, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
435138 ; 435280 ; 4353171 ; 435803 ;
Abstract
2-Keto-L-gulonic acid is separated from a fermented medium containing the calcium salt of 2-keto-L-gulonic acid, by carrying out the following operations: separation of insolubles; removal of inorganic cations; and separation of the 2-keto-L-gulonic acid.
Barthole, Jean-Pierre. (1991). Process for separating 2-keto-l-gulonic acid from a fermented medium (U.S. Patent No. 4990441). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4990441
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile