Granted Patent
Utility
US 6,686,417 · App. 09/261,526
Surfactant composition for inverse emulsion polymerization of polyacrylamide and process of using the same
Inventors:
Steven Reekmans, Phillip Cornet
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Mar 3, 1999
Inventors
Steven Reekmans
Phillip Cornet
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.