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:
Jan. 30, 2001
Filed:
Jun. 23, 1999
Applicant:
Inventor:
Michael Jansen, Bartenheim, FR;
Assignee:
Roche Vitamins Inc., Parsippany, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
A photochemical process for the production of previtamin D,or a derivative thereof from 7-dehydrocholesterol is disclosed. The process includes irradiating the 7-dehydrocholesterol in a reactor with a UV radiation source, wherein the UV source includes an excimer or exciplex emitter which emits quasi-monochromatically according to the corona discharge mechanism in the UV range, and recovering previtamin D,or a derivative thereof. Previtamin D,compositions and derivatives made from this process are also provided.
Jansen, Michael. (2001). Photochemical process for the production of previtamin d3 (U.S. Patent No. 6180805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6180805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile