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:
Jun. 05, 2001
Filed:
Nov. 26, 1999
Applicant:
Inventors:
Gerrit Jan Bouke Ettema, Denekamp, NL;
Jacobus Maria Lemmens, Mook, NL;
Theodorus Hendricus Antonius Peters, Arnhem, NL;
Frantisek Picha, Brno, CZ;
Assignee:
Synthon BV, , NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3/144 ;
U.S. Cl.
CPC ...
A61K 3/144 ;
Abstract
Zolpidem salts having improved physical stability do not exhibit a melting endotherm corresponding to zolpidem free base when heated at 5° C./minute from about 25° C. to 250° C. The salts are generally easy to reproduce, even on an industrial scale and are easier to handle due to the increased stability than the known zolpidem tartrate. The zolpidem salts are typically pharmaceutically acceptable salts and can be used in formulating pharmaceutical compositions and in pharmaceutical uses; e.g. as a hypnotic.