IP Library › Granted Patent US 4,847,434
Granted Patent Utility
US 4,847,434 · App. 07/146,428

Biphenol process

Inventors: George L. Mina, Dixie E. Goins, John S. Gramling
Patented Case View Patent ↗
Granted: Jul 11, 1989 Filed: Jan 21, 1988
Inventors
George L. Mina
Dixie E. Goins
John S. Gramling
Assignee (at issue)
Ethyl Corporation

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Quick Facts
Patent No.
US 4,847,434
App. No.
07/146,428
Filed
1988-01-21
Granted
1989-07-11
Kind
A