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:
May. 26, 2015
Filed:
Oct. 07, 2013
Applicant:
Thar Pharmaceuticals, Inc., Pittsburgh, PA (US);
Inventors:
Mazen Hanna, Lutz, FL (US);
Ning Shan, Tampa, FL (US);
Miranda L. Cheney, Tampa, FL (US);
David R. Weyna, Tampa, FL (US);
Assignee:
THAR PHARMACEUTICALS, INC., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/4985 (2006.01); C07D 487/22 (2006.01); C07D 471/14 (2006.01);
U.S. Cl.
CPC ...
C07D 471/14 (2013.01);
Abstract
Crystalline molecular complexes of tadalafil are disclosed. The crystalline molecular complexes include those of tadalafil and oxalic acid, tadalafil and 4-hydroxybenzoic acid, tadalafil and 3-phenylpropanoic acid, tadalafil and malonic acid, tadalafil and methylparaben, and tadalafil and propylparaben. Pharmaceutical compositions containing the crystalline molecular complexes are also disclosed.