Granted Patent
Utility
US 6,693,057 · App. 10/104,964
Water gas shift catalyst
Inventors:
Yeping Cai, Sally L. Davies, Jon P. Wagner
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Mar 22, 2002
Inventors
Yeping Cai
Sally L. Davies
Jon P. Wagner
Assignee (at issue)
Sud Chemie, Inc.
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.