Granted Patent
Utility
US 4,597,946 · App. 06/728,969
Vertical tube reactor with serial downward flow through a plurality of sets of particulate containing tubes
Inventor:
Dennis J. Ward
Patented Case
View Patent ↗
Granted: Jul 1, 1986
Filed: Apr 30, 1985
Inventor
Dennis J. Ward
Assignee (at issue)
UOP 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.