Granted Patent
Utility
US 6,512,129 · App. 10/055,776
Epoxidation process
Inventors:
Xiangmin Li, David W. Leyshon
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jan 23, 2002
Inventors
Xiangmin Li
David W. Leyshon
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.