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:
Sep. 28, 1999
Filed:
Apr. 23, 1998
Applicant:
Inventors:
Alfred Olbrich, Halle/Westf., DE;
Peter Emig, Bruchkobel, DE;
Bernhard Kutscher, Maintal, DE;
Karl-Friedrich Landgraf, Dresden, DE;
Siegfried Pauluhn, Walldurn-Reinhardsachsen, DE;
Hans Stange, Riesa, DE;
Assignee:
ASTA Medica Aktiengesellschaft, Dresden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546308 ;
Abstract
A process for preparation of pure flupertine maleate and the pure A crystalline form of flupertine maleate by the use of water soluble alcohols during synthesis and/or purification.