Granted Patent
Utility
US 5,399,782 · App. 08/027,626
Benzoyl-substituted phosphabicycloalkanes and phosphabicycloalkanesulfides as photoinitiators
Inventors:
David G. Leppard, Ljubomir Misev, Gebhard Hug
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Mar 8, 1993
Inventors
David G. Leppard
Ljubomir Misev
Gebhard Hug
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.