Granted Patent
Utility
US 6,191,238 · App. 09/387,365
Process for producing polyolefins
Inventors:
Randal Ray Ford, Jeffrey J. Vanderbilt, Roxanna Lea Whitfield, Glenn Edward Moore
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Aug 31, 1999
Inventors
Randal Ray Ford
Jeffrey J. Vanderbilt
Roxanna Lea Whitfield
Glenn Edward Moore
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.