Granted Patent
Utility
US 5,905,163 · App. 08/996,948
Method for preparing aminomethylphosphonate derivatives via hydrogenation of cyanophosphonate derivatives
Inventor:
Patrick J. Lennon
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Dec 23, 1997
Inventor
Patrick J. Lennon
Assignee (at issue)
Monsanto Company
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.