Granted Patent
Utility
US 6,440,380 · App. 09/461,635
Preparation of phosphorus (I) oxides, phosphorus (III) oxides, and lower hydrides of phosphorus by catalytic reduction of phosphorus (V) oxides
Inventors:
Jerald D. Heise, Erik D. Sall
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Dec 14, 1999
Inventors
Jerald D. Heise
Erik D. Sall
Assignee (at issue)
Monsanto Technology LLC
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.