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. 28, 2022
Filed:
Feb. 21, 2020
Applicant:
Pain Therapeutics, Inc., Austin, TX (US);
Inventors:
Michael Zamloot, Austin, TX (US);
Lindsay Burns Barbier, Austin, TX (US);
Shawn Anthony Kucera, Cedar Park, TX (US);
Assignee:
CASSAVA SCIENCES, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/10 (2006.01);
U.S. Cl.
CPC ...
C07D 471/10 (2013.01); C07B 2200/13 (2013.01);
Abstract
The preparation and properties of crystalline polymorphs and solvates of 1-benzyl-8-methyl-1,4,8-triazaspiro-[4.5]-decan-2-one free base and of the mono- and dihydrochloride salts and solvates thereof are disclosed, as is an amorphous polymorph of the dihydrochloride. A pharmaceutical composition containing one or more polymorphs and a method of using that composition are also disclosed.