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:
Feb. 25, 2003
Filed:
May. 31, 2001
Applicant:
Inventors:
Matthew R. Gevaert, Central, SC (US);
Stephen Massia, Apache Junction, AZ (US);
Assignee:
Clemson University, Clemson, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C07H 1/00 ; A01N 4/304 ; A61K 9/14 ;
U.S. Cl.
CPC ...
C08F / ; C07H 1/00 ; A01N 4/304 ; A61K 9/14 ;
Abstract
A biocompatible, biodegradable, copolymer is prepared from cross-linking a polylactic acid with a polysaccharide such as dextran. The resulting copolymer is a biodegradable hydrogel or solid having both hydrophobic and hydrophilic properties and provides for a mechanism in which biologically active agents may be covalently bonded to the dextran prior to incorporation of the dextran into a copolymer, and the subsequent release of the biologically active agents as the copolymer degrades.