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. 01, 1986
Filed:
Feb. 08, 1985
Applicant:
Inventors:
Erich Widmer, Munchenstein, CH;
Reinhard Zell, Rodersdorf, CH;
Assignee:
Hoffman-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568347 ; 568338 ; 568343 ; 568376 ;
Abstract
A novel process for the manufacture of cyclohexene derivatives which are suitable as intermediates for the manufacture of rhodoxanthin or zeaxanthin, as well as a process for the manufacture of rhodoxanthin or of zeaxanthin itself. The invention is also concerned with a novel starting material and novel intermediates in this process.