Granted Patent
Utility
US 5,821,193 · App. 08/557,092
Adsorbent having a terminal hydrazine group and a method for removing ketoamine-containing protein
Inventors:
Nobutaka Tani, Eiji Ogino
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Dec 6, 1995
Inventors
Nobutaka Tani
Eiji Ogino
Assignee (at issue)
Kanegafuchi Kagaku Kogyo 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.