Granted Patent
Utility
US 6,573,344 · App. 09/599,387
Propylene polymerization process
Inventors:
Gil R. Hawley, Max P. McDaniel, Michael D. Jensen, Christopher E. Wittner
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Jun 22, 2000
Inventors
Gil R. Hawley
Max P. McDaniel
Michael D. Jensen
Christopher E. Wittner
Assignee (at issue)
Phillips Petroleum 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.