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:
Dec. 06, 2005
Filed:
Apr. 29, 2002
Applicant:
Yan Chang, Ashland, MA (US);
Inventor:
Yan Chang, Ashland, MA (US);
Assignee:
Glycogenesys, Inc., Boston, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B037/08 ;
U.S. Cl.
CPC ...
Abstract
A concentrated solution of a polyglucosamine such as chitin or chitosan is prepared by forming an aqueous slurry of said polyglucosamine with a peroxide, and adding copper ion to said slurry so as to solubulize said polyglucosamine.