Granted Patent
Utility
US 5,789,627 · App. 08/802,746
Method for the purification of tertiary butyl alcohol and to its use in the manufacture of MTBE
Inventors:
Rei-Yu J. Hwan, Kyle Preston
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Feb 20, 1997
Inventors
Rei-Yu J. Hwan
Kyle Preston
Assignee (at issue)
Huntsman Specialty Chemicals 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.