Granted Patent
Utility
US 5,965,776 · App. 08/519,225
Alkoxyphenyl-substituted bisacylphosphine oxides
Inventors:
David G. Leppard, Manfred Kohler
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Aug 25, 1995
Inventors
David G. Leppard
Manfred Kohler
Assignee (at issue)
Ciba Specialty Chemicals 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.