Granted Patent
Utility
US 6,806,398 · App. 10/148,184
Process for removing mercury from liquid hydrocarbon
Inventors:
Tsunenori Sakai, Hajime Ito, Jun Mase
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Jun 6, 2002
Inventors
Tsunenori Sakai
Hajime Ito
Jun Mase
Assignee (at issue)
Idemitsu Petrochemical Co., Ltd.
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.