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:
Dec. 12, 2017
Filed:
Sep. 22, 2014
Applicant:
Glenmark Pharmaceuticals Limited, Mumbai, IN;
Inventors:
Shekhar Bhaskar Bhirud, Mumbai, IN;
Kumar Hari Bhushan, Gurgaon, IN;
H M Veerabhadra Swamy, Bangalore, IN;
Dilipkumar Jibhau Patil, Nasik, IN;
Avikumar Digambar Dabe, Nasik, IN;
Assignee:
GLENMARK PHARMACEUTICALS LIMITED, Mumbai, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/48 (2006.01); C07C 69/60 (2006.01); C07C 67/08 (2006.01); C07C 67/60 (2006.01);
U.S. Cl.
CPC ...
C07C 69/60 (2013.01); C07C 67/08 (2013.01); C07C 67/60 (2013.01);
Abstract
The present invention relates to a process for the preparation of dimethyl fumarate, a compound of formula I, in a purity of at least 99.0% as determined by HPLC, containing less than 400 ppm of an anion of a mineral acid and less than 5 ppm of dimethyl maleate.