Granted Patent
Utility
US 6,191,239 · App. 09/251,811
Process for producing polyethylene
Inventors:
Randal Ray Ford, William A. Ames, Kenneth A. Dooley, Jeffrey J. Vanderbilt, Alan George Wonders
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Feb 17, 1999
Inventors
Randal Ray Ford
William A. Ames
Kenneth A. Dooley
Jeffrey J. Vanderbilt
Alan George Wonders
Assignee (at issue)
Eastman Chemical Company
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.