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:
Mar. 04, 2014
Filed:
May. 09, 2005
Applicants:
Miqin Zhang, Bothell, WA (US);
Narayan Bhattarai, Seattle, WA (US);
Frederick A. Matsen, Seattle, WA (US);
Inventors:
Miqin Zhang, Bothell, WA (US);
Narayan Bhattarai, Seattle, WA (US);
Frederick A. Matsen, Seattle, WA (US);
Assignee:
University of Washington, Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides compositions comprising an interpolymer of chitosan and polyethylene glycol, wherein the interpolymer is a liquid below 25° C. and a gel above 35° C. The present invention also provides methods for using the compositions to deliver drugs to a living body over time.