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:
Jul. 01, 2014
Filed:
Sep. 23, 2010
Applicants:
Rolf Hilfiker, Basel, CH;
Timo Rager, Basel, CH;
Inventors:
Rolf Hilfiker, Basel, CH;
Timo Rager, Basel, CH;
Assignee:
Wista Laboratories Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 279/18 (2006.01); A61K 31/5415 (2006.01);
U.S. Cl.
CPC ...
Abstract
Three dihydrate forms B, C and D and a monohydrate form E of methylthioninium chloride are described. Forms B, C, D and E can be prepared under controlled humidity and temperature from methylthioninium chloride with higher water content or conversion of a hydrate. The hydrates can be incorporated in pharmaceutical compositions.