Granted Patent
Utility
US 6,784,267 · App. 10/205,282
Polymers containing hyperbranched monomers
Inventors:
William J. Ward, Ananthasubramanian Sivakumar
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jul 25, 2002
Inventors
William J. Ward
Ananthasubramanian Sivakumar
Assignee (at issue)
Nalco Company 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.