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:
May. 05, 2009
Filed:
Apr. 30, 2007
Applicants:
J. Milton Harris, Huntsville, AL (US);
Antoni Kozlowski, Huntsville, AL (US);
Inventors:
J. Milton Harris, Huntsville, AL (US);
Antoni Kozlowski, Huntsville, AL (US);
Assignee:
Nektar Therapeutics AL, Corporation, Huntsville, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 12/30 (2006.01); C08F 28/02 (2006.01); C08F 118/00 (2006.01); C08F 120/00 (2006.01); C08F 122/00 (2006.01); C08F 218/00 (2006.01);
U.S. Cl.
CPC ...
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 (polyethylene glycol) and the biologically active agent.