Granted Patent
Utility
US 5,847,207 · App. 08/793,113
Process for producing 2-hydroxy-4-methylthiobutyric acid (MHA) and its use as feed stuff supplement
Inventors:
Helmut Suchsland, Volker Hafner
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: May 13, 1997
Inventors
Helmut Suchsland
Volker Hafner
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.