Granted Patent
Utility
US 6,761,863 · App. 10/059,459
Process for the removal of impurities from gas streams
Inventors:
Shuen-Cheng Hwang, Neeraj Saxena, Robert J. Ferrell, Naresh J. Suchak, Lev Davydov, James K. Tseng, Chester Gorski
Patented Case
View Patent ↗
Granted: Jul 13, 2004
Filed: Jan 29, 2002
Inventors
Shuen-Cheng Hwang
Neeraj Saxena
Robert J. Ferrell
Naresh J. Suchak
Lev Davydov
James K. Tseng
Chester Gorski
Assignee (at issue)
The BOC Group Limited
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.