IP Library › Granted Patent US 4,816,141
Granted Patent Utility
US 4,816,141 · App. 07/109,645

Catalytic two-stage liquefaction of coal utilizing cascading of used ebullated-bed catalyst

Inventors: Joseph B. McLean, Alfred G. Comolli, James B. MacArthur
Patented Case View Patent ↗
Granted: Mar 28, 1989 Filed: Oct 16, 1987
Inventors
Joseph B. McLean
Alfred G. Comolli
James B. MacArthur
Assignee (at issue)
HRI

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Quick Facts
Patent No.
US 4,816,141
App. No.
07/109,645
Filed
1987-10-16
Granted
1989-03-28
Kind
A