IP Library › Granted Patent US 6,686,468
Granted Patent Utility
US 6,686,468 · App. 10/129,736

H-annellated benzo[f]chromenes

Inventors: Claudia Mann, Manfred Melzig, Udo Weigand
Patented Case View Patent ↗
Granted: Feb 3, 2004 Filed: May 10, 2002
Inventors
Claudia Mann
Manfred Melzig
Udo Weigand
Assignee (at issue)
Optische Werke G. Rodenstock

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Quick Facts
Patent No.
US 6,686,468
App. No.
10/129,736
Filed
2002-05-10
Granted
2004-02-03
Kind
B2