Granted Patent
Utility
US 6,239,184 · App. 09/401,420
Extended catalyst life Fischer-Tropsch process
Inventors:
Gary L. Beer, James Leahy, Greg A. Lisewsky, Kernan J. McHugh, Michael D. Briscoe
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Sep 22, 1999
Inventors
Gary L. Beer
James Leahy
Greg A. Lisewsky
Kernan J. McHugh
Michael D. Briscoe
Assignee (at issue)
Syntroleum Corporation
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.