IP Library Granted Patent US 4,909,997
Granted Patent Utility
US 4,909,997 · App. 07/205,729

Tetrabromobisphenol-A process

Inventors: Olan Wayne Mitchell, Bonnie G. McKinnie
Patented Case View Patent ↗
Granted: Mar 20, 1990 Filed: Jun 13, 1988
Inventors
Olan Wayne Mitchell
Bonnie G. McKinnie
Assignee (at issue)
Ethyl Corporation

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Quick Facts
Patent No.
US 4,909,997
App. No.
07/205,729
Filed
1988-06-13
Granted
1990-03-20
Kind
A