Granted Patent
Utility
US 4,994,608 · App. 07/082,945
Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol
Inventors:
G. Paull Torrence, Joel Durham Hendricks, Dennis D. Dickinson, Adolfo Aguilo
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: Aug 5, 1987
Inventors
G. Paull Torrence
Joel Durham Hendricks
Dennis D. Dickinson
Adolfo Aguilo
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.