Granted Patent
Utility
US 6,433,161 · App. 08/841,036
Galactosylated hydroxyalkyl polysaccharides
Inventors:
H. Cheng, Robert G. Nickol, George Peng Wang, Jun Li
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Apr 29, 1997
Inventors
H. Cheng
Robert G. Nickol
George Peng Wang
Jun Li
Assignee (at issue)
HERCULES LLC
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.