Granted Patent
Utility
US 6,251,963 · App. 09/453,356
Photoinitiator combinations
Inventors:
Manfred Kohler, Jean-Pierre Wolf, Andre Litzler, Guido Tolotti, Nils Hoeck
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Dec 1, 1999
Inventors
Manfred Kohler
Jean-Pierre Wolf
Andre Litzler
Guido Tolotti
Nils Hoeck
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.