Granted Patent
Utility
US 5,210,243 · App. 07/787,101
Hydrogenation of aromatic-substituted olefins using organometallic catalyst
Inventor:
Charles H. Kolich
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Nov 4, 1991
Inventor
Charles H. Kolich
Assignee (at issue)
Ethyl Corporation
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.