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. 19, 2024
Filed:
Oct. 11, 2019
Applicant:
Nektar Therapeutics, San Francisco, CA (US);
Inventors:
Sean M. Culbertson, Gurley, AL (US);
Samuel P. McManus, Huntsville, AL (US);
Antoni Kozlowski, Huntsville, AL (US);
Venkata Ravidnranadh Somu, Madison, AL (US);
Assignee:
Nektar Therapeutics, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/333 (2006.01); A61K 47/60 (2017.01); C08G 65/30 (2006.01);
U.S. Cl.
CPC ...
C08G 65/33396 (2013.01); A61K 47/60 (2017.08); C08G 65/30 (2013.01);
Abstract
The instant disclosure provides (among other things) improved methods of preparing fluorenyl-based polymeric reagents, methods of recovering and purifying such polymeric reagents, methods of reducing unwanted impurities in a fluorenyl-based polymeric reagent, fluorenyl-based polymeric reagents prepared by the methods described herein, and conjugates prepared by reaction with fluorenyl-based polymeric reagents prepared by the methods described herein.