IP Library › Granted Patent US 4,650,870
Granted Patent Utility
US 4,650,870 · App. 06/588,462

Substituted piperazinone light stabilizers

Inventors: Thomas E. Conetta, Roger F. Malherbe, Roland A. E. Winter
Patented Case View Patent ↗
Granted: Mar 17, 1987 Filed: Mar 12, 1984
Inventors
Thomas E. Conetta
Roger F. Malherbe
Roland A. E. Winter
Assignee (at issue)
Ciba-Geigy

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Quick Facts
Patent No.
US 4,650,870
App. No.
06/588,462
Filed
1984-03-12
Granted
1987-03-17
Kind
A