Granted Patent
Utility
US 5,876,607 · App. 08/795,002
Activated carbon treated by carbon dioxide for the stabilization of treated water pH and the control of aluminum in the treated water
Inventors:
Richard W. Farmer, Susan L. Kovacic, Brett Leslie Pinker, Thomas M. Matviya, Netar P. Wadhwa
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Feb 5, 1997
Inventors
Richard W. Farmer
Susan L. Kovacic
Brett Leslie Pinker
Thomas M. Matviya
Netar P. Wadhwa
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.