Granted Patent
Utility
US 4,491,675 · App. 06/293,189
Hydroformylation process using triarylphosphine and bisphosphine monooxide ligands
Inventors:
Anthony G. Abatjoglou, David R. Bryant
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Aug 17, 1981
Inventors
Anthony G. Abatjoglou
David R. Bryant
Assignee (at issue)
Union Carbide 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.