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:
Oct. 11, 2011
Filed:
Jun. 04, 2008
Applicants:
Jian Du, Beijing, CN;
Chenghai Zhao, Beijing, CN;
Inventors:
Jian Du, Beijing, CN;
Chenghai Zhao, Beijing, CN;
Assignee:
Multi-Tech Specialty Chemicals, Co., Ltd., Tianjin, CN;
Primary Examiner:
Int. Cl.
CPC ...
C07C 35/21 (2006.01); C07C 35/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention describes the preparation and isolation of xanthophylls from plant sources, whereby a transesterification process is utilized without the necessity of an aqueous format.
Du, Jian. (2011). Process for the preparation of xanthophyll crystals (U.S. Patent No. 8034983). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8034983
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile