Granted Patent
Utility
US 5,136,108 · App. 07/759,252
Production of oxygenated fuel components
Inventors:
Anne Mae Gaffney, William J. Piel
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Sep 13, 1991
Inventors
Anne Mae Gaffney
William J. Piel
Assignee (at issue)
Arco Chemical Technology, L.P.
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.