Granted Patent
Utility
US 6,716,359 · App. 09/650,456
Enhanced time-based proportional control
Inventor:
Richard W. Dennis, II
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Aug 29, 2000
Inventor
Richard W. Dennis, II
Assignee (at issue)
United States Filter 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.