Granted Patent
Utility
US 5,563,308 · App. 08/461,349
Ferrocene diphosphines as ligands for homogeneous catalysts
Inventors:
Felix Spindler, Amina Wirth-Tijani, Heidi Landert
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Jun 5, 1995
Inventors
Felix Spindler
Amina Wirth-Tijani
Heidi Landert
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.