Granted Patent
Utility
US 5,985,133 · App. 09/110,530
Control of particle size distribution in an FCC unit
Inventor:
Howard F. Moore
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jul 6, 1998
Inventor
Howard F. Moore
Assignee (at issue)
Marathon Ashland Petroleum LLC
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.