Granted Patent
Utility
US 5,011,755 · App. 07/473,135
Photoinitiator mixtures containing a titanocene and a 3-ketocoumarin
Inventors:
Ottmar Rohde, Armin Schaffner, Martin Riediker, Kurt Meier
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Jan 30, 1990
Inventors
Ottmar Rohde
Armin Schaffner
Martin Riediker
Kurt Meier
Assignee (at issue)
Ciba-Geigy
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.