Granted Patent
Utility
US 6,664,331 · App. 09/992,102
Poly(ethylene glycol) derivatives with proximal reactive groups
Inventors:
J. Milton Harris, Antoni Kozlowski
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Nov 5, 2001
Inventors
J. Milton Harris
Antoni Kozlowski
Assignee (at issue)
Nektar Therapeutics AL, Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.