Granted Patent
Utility
US 6,184,414 · App. 08/781,833
Process for producing ammonium-2-hydroxy-4-(methylthio)-butyrate, mixtures containing the same in liquid form and their use
Inventors:
Helmut Suchsland, Heinz Kohl
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Jan 10, 1997
Inventors
Helmut Suchsland
Heinz Kohl
Assignee (at issue)
Degussa AG
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.