Granted Patent
Utility
US 5,466,844 · App. 08/313,484
Ferrocene diphosphines as ligands for homogeneous catalysts
Inventors:
Felix Spindler, Amina Wirth-Tijani, Heidi Landert
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Sep 27, 1994
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.