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:
Jul. 24, 2007
Filed:
Oct. 03, 2005
Samuel F. Lockwood, Lago Vista, TX (US);
Peng Cho Tang, Moraga, CA (US);
Geoff Nadolski, Kasole, HI (US);
Henry L. Jackson, Honolulu, HI (US);
Zhiqiang Fang, Hawthorn Woods, IL (US);
Yishu Du, Shanghai, CN;
Min Yang, Vernon Hills, IL (US);
William Geiss, Athens, NY (US);
Richard Williams, Nashville, TN (US);
David Burdick, Guilderland, NY (US);
Samuel F. Lockwood, Lago Vista, TX (US);
Peng Cho Tang, Moraga, CA (US);
Geoff Nadolski, Kasole, HI (US);
Henry L. Jackson, Honolulu, HI (US);
Zhiqiang Fang, Hawthorn Woods, IL (US);
Yishu Du, Shanghai, CN;
Min Yang, Vernon Hills, IL (US);
William Geiss, Athens, NY (US);
Richard Williams, Nashville, TN (US);
David Burdick, Guilderland, NY (US);
Cardax Pharmaceuticals, Inc., Aiea, HI (US);
Abstract
A method used for synthesizing intermediates for use in the synthesis of carotenoids and carotenoid analogs, and/or carotenoid derivatives. In some embodiments, the invention includes methods for synthesizing optically active intermediates useful for the synthesis of optically active carotenoids. Synthesis of optically active carotenoids, in one embodiment, may be accomplished by forming an optically active dihydroxy intermediate from ketoisopherone. The optically active dihydroxy intermediate may be converted into optically active astaxanthin derivatives.