Granted Patent
Utility
US 6,123,835 · App. 09/104,079
Two phase hydroprocessing
Inventors:
Michael D. Ackerson, Michael Steven Byars
Patented Case
View Patent ↗
Granted: Sep 26, 2000
Filed: Jun 24, 1998
Inventors
Michael D. Ackerson
Michael Steven Byars
Assignee (at issue)
Process Dynamics, Inc.
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.