Granted Patent
Utility
US 6,066,257 · App. 09/128,569
Process for the removal and destruction of perchlorate and nitrate from aqueous streams
Inventors:
K. Raman Venkatesh, Eve R. Cobes, Dale L. Jennings, Norman J. Wagner
Patented Case
View Patent ↗
Granted: May 23, 2000
Filed: Aug 4, 1998
Inventors
K. Raman Venkatesh
Eve R. Cobes
Dale L. Jennings
Norman J. Wagner
Assignee (at issue)
CALGON CARBON CORPORATION
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.