Granted Patent
Utility
US 5,494,595 · App. 08/366,857
Oil soluble polyethers
Inventor:
Edward C. Y. Nieh
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Dec 30, 1994
Inventor
Edward C. Y. Nieh
Assignee (at issue)
HUNTSMAN 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.