Granted Patent
Utility
US 6,809,059 · App. 09/912,319
Catalyst
Inventor:
Masakatsu Shibasaki
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jul 26, 2001
Inventor
Masakatsu Shibasaki
Assignee (at issue)
Johnson Matthey PLC
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.