Granted Patent
Utility
US 4,664,778 · App. 06/720,171
Method for regeneration of resid cracking catalyst
Inventor:
Leo R. Reinkemeyer
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Apr 5, 1985
Inventor
Leo R. Reinkemeyer
Assignee (at issue)
Total Engineering and Research 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.