Granted Patent
Utility
US 5,737,911 · App. 08/583,753
Method of operating combined plant
Inventors:
Shinichi Hoizumi, Hideyuki Sato, Satoshi Kusaka, Youichi Hattori, Hitoshi Ishimaru
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Jan 17, 1996
Inventors
Shinichi Hoizumi
Hideyuki Sato
Satoshi Kusaka
Youichi Hattori
Hitoshi Ishimaru
Assignees (at issue)
HITACHI, LTD.
Hitachi Engineering 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.