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:
Jun. 13, 1978
Filed:
Jul. 20, 1976
Applicant:
Inventors:
Walter Boguth, Riehen, CH;
Hans Georg Leuenberger, Arlesheim, CH;
Hans Johann Mayer, Fullinsdorf, CH;
Erich Widmer, Munchenstein, CH;
Reinhard Zell, Rodersdorf, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560255 ; 2603 / ; 260410 ; 260463 ; 2605 / ; 260598 ; 2606 / ; 2606 / ; 2606 / ; 260928 ; 560194 ; 560231 ; 560259 ; 568816 ; 568824 ; 568828 ;
Abstract
A process for fermentatively hydrogenating and reducing ketoisophorone to produce optically active [4R,6R]-4-hydroxy-2,6,6-trimethyl-cyclohexanone useful as an intermediate in the production of optically active carotenoids and intermediates in the production of these carotenoids.