Granted Patent
Utility
US 6,063,897 · App. 09/072,852
Acid-treated double metal cyanide complex catalysts
Inventors:
Bi Le-Khac, Wei Wang, Mahmoud K. Faraj
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: May 5, 1998
Inventors
Bi Le-Khac
Wei Wang
Mahmoud K. Faraj
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.