Granted Patent
Utility
US 6,228,650 · App. 09/206,801
Acid catalyst regeneration control
Inventors:
William P. Moore, Mark A. Clark, Bruce B. Randolph
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Dec 7, 1998
Inventors
William P. Moore
Mark A. Clark
Bruce B. Randolph
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.