Granted Patent
Utility
US 6,710,013 · App. 09/763,779
Exhaust emission control catalyst structure
Inventors:
Yasuyoshi Kato, Kouichi Yokoyama, Eiji Miyamoto, Masatoshi Fujisawa
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Apr 20, 2001
Inventors
Yasuyoshi Kato
Kouichi Yokoyama
Eiji Miyamoto
Masatoshi Fujisawa
Assignee (at issue)
Babcock-Hitachi Kabushiki Kaisha
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.