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:
Jun. 25, 2024
Filed:
Aug. 23, 2021
Applicant:
Nektar Therapeutics, San Francisco, CA (US);
Inventors:
Michael D. Bentley, Huntsville, AL (US);
Tacey X. Viegas, Madison, AL (US);
Richard R. Goodin, Rising Sun, IN (US);
Lin Cheng, Sunnyvale, CA (US);
Xuan Zhao, Beijing, CN;
Assignee:
Nektar Therapeutics, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/24 (2006.01); A61K 9/00 (2006.01); A61K 31/167 (2006.01); A61K 31/485 (2006.01); A61K 47/60 (2017.01);
U.S. Cl.
CPC ...
A61K 9/007 (2013.01); A61K 31/167 (2013.01); A61K 31/485 (2013.01); A61K 47/60 (2017.08); C07C 41/24 (2013.01);
Abstract
Methods of preparing monodisperse oligomer reagent compositions such as oligo(ethylene glycol) reagent compositions are described herein. The methods involve reacting a halo-terminated oligomer such as an oligo(ethylene oxide) having (m) monomers with a hydroxyl-terminated oligomer such as a hydroxyl-terminated oligo(ethylene oxide) having (n) monomers.