Granted Patent
Utility
US 5,437,847 · App. 08/350,643
Method of separating and recovering ruthenium from high-level radioactive liquid waste
Inventors:
Masayuki Yoneya, Kazuhiro Kawamura, Shin-ichiro Torata, Takeshi Takahashi
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Dec 7, 1994
Inventors
Masayuki Yoneya
Kazuhiro Kawamura
Shin-ichiro Torata
Takeshi Takahashi
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.