Granted Patent
Utility
US 6,790,994 · App. 10/220,821
Methods for hydrogenating nitrile functions into amine functions
Inventors:
Vincent Boschat, Philippe Leconte
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jan 10, 2003
Inventors
Vincent Boschat
Philippe Leconte
Assignee (at issue)
RHODIA POLYAMIDES INTERMEDIATES
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.