Granted Patent
Utility
US 4,524,142 · App. 06/598,931
Platinum (O) complex-based hydroformylation catalyst
Inventors:
Chao-Yang Hsu, James E. Lyons, Paul E. Ellis, Jr.
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Apr 11, 1984
Inventors
Chao-Yang Hsu
James E. Lyons
Paul E. Ellis, Jr.
Assignee (at issue)
SUN-TECH LIMITED
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.