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:
Apr. 05, 2011
Filed:
Mar. 19, 2008
Raghupathi Reddy Anumula, Hyderabad, IN;
Goverdhan Gilla, Hyderabad, IN;
Sampath Alla, Karim Nagar, IN;
Thirupathi Reddy Akki, Karim Nagar, IN;
Yakambram Bojja, Warangal, IN;
Raghupathi Reddy Anumula, Hyderabad, IN;
Goverdhan Gilla, Hyderabad, IN;
Sampath Alla, Karim Nagar, IN;
Thirupathi Reddy Akki, Karim Nagar, IN;
Yakambram Bojja, Warangal, IN;
Dr. Reddy's Laboratories Limited, Hyderabad, IN;
Dr. Reddy's Laboratories, Inc., Bridgewater, NJ (US);
Abstract
There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile