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:
Mar. 19, 1985
Filed:
Mar. 12, 1984
Applicant:
Inventors:
Wolfgang Herrmann, Merzhausen, DE;
Uwe Gebhardt, Waldkirch, DE;
Assignee:
Warner-Lambert Company, Morris Plains, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
544 49 ;
Abstract
A new process for the preparation of microcrystalline isoxicam having a particle size of about 1-30 .mu.m which comprises dissolving isoxicam in a mixture consisting of a solvent miscible with water and of an aqueous base where the resulting basic solution is neutralized with dilute acid to a pH of 4-6 with vigorous agitation precipitating the microcrystalline product is herein described.