Granted Patent
Utility
US 5,144,068 · App. 07/615,846
Methanol carbonylation process
Inventors:
Brad Smith, G. Paull Torrence, Adolfo Aguilo, James S. Alder
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Jan 7, 1991
Inventors
Brad Smith
G. Paull Torrence
Adolfo Aguilo
James S. Alder
Assignee (at issue)
Hoechst Celanese Corporation
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.