Granted Patent
Utility
US 5,093,098 · App. 07/531,682
Method of controlling water/hydrogen isotopic exchange reaction plant
Inventors:
Ryuji Ninomiya, Shigeru Yoshizumi, Shiko Kiyota, Takuya Kitabata
Patented Case
View Patent ↗
Granted: Mar 3, 1992
Filed: Jun 1, 1990
Inventors
Ryuji Ninomiya
Shigeru Yoshizumi
Shiko Kiyota
Takuya Kitabata
Assignee (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
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.