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:
Oct. 06, 1998
Filed:
Nov. 07, 1996
Applicant:
Inventors:
Hans R Muller, Schaffhausen, CH;
Martin Ulmann, Dachsen, CH;
Rudolf Moser, Schaffhausen, CH;
Thomas Ammann, Marthalen, CH;
Assignee:
Eprova AG, , CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ; C07D / ;
U.S. Cl.
CPC ...
514249 ; 544258 ;
Abstract
This invention relates to stable crystalline salts of (6R,S)-, (6S)- and (6R)-tetrahydrofolic acid, to methods of preparing these salts and to their use as an ingredient for the production of drugs and pharmaceutical preparations.