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. 09, 2013
Filed:
Jan. 02, 2009
Applicants:
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Rajendra Narayanrao Kankan, Maharashtra, IN;
Manjinder Singh Phull, Maharashtra, IN;
Ashwini Amol Sawant, Mulund, IN;
Inventors:
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Rajendra Narayanrao Kankan, Maharashtra, IN;
Manjinder Singh Phull, Maharashtra, IN;
Ashwini Amol Sawant, Mulund, IN;
Assignee:
CIPLA Limited, Mumbai, IN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 403/04 (2006.01); C07D 239/69 (2006.01); A61K 31/506 (2006.01); A61P 9/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to alkaline earth metal salts of bosentan, anyhdrous bosentan, polymorphic forms thereof, amorphous bosentan and processes for preparing them. The present invention further relates to a process for the preparation of bosentan and its pharmaceutically acceptable salts.