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:
Apr. 01, 2003
Filed:
Nov. 05, 2001
Applicant:
Inventors:
J. Milton Harris, Huntsville, AL (US);
Antoni Kozlowski, Huntsville, AL (US);
Assignee:
Shearwater Corporation, Huntsville, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/20 ; C08F / ; C07C 4/900 ; C07C 4/9105 ; C07C 4/921 ;
U.S. Cl.
CPC ...
C08K 3/20 ; C08F / ; C07C 4/900 ; C07C 4/9105 ; C07C 4/921 ;
Abstract
An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and has proximal reactive groups. The free reactive groups are capable of reacting with active moieties in a biologically active agent such as a protein or peptide thus forming conjugates between the activated poly(ethylene glycol) and the biologically active agent.