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. 26, 1999
Filed:
Nov. 27, 1998
Applicant:
Inventors:
Byron C Robinson, Santa Barbara, CA (US);
Avinash S Phadke, Goleta, CA (US);
Shwn-Ji Susie Lee, Goleta, CA (US);
Dipanjan Sengupta, Goleta, CA (US);
Assignee:
Miravant Pharmaceuticals, Inc., Santa Barbara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540145 ; 534 15 ;
Abstract
An improved method for the demethoxycarbonylation of porphyrinic compounds such as pheophorbides involving reacting the starting porphyrinic compound with a high boiling point solvent to which a selected amount of water has been added.