Granted Patent
Utility
US 5,404,893 · App. 07/849,750
Self-optimizing detergent controller
Inventors:
Daniel F. Brady, John E. McCall, Jr., Clyde A. Bailey, James L. Copeland
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Mar 12, 1992
Inventors
Daniel F. Brady
John E. McCall, Jr.
Clyde A. Bailey
James L. Copeland
Assignee (at issue)
ECOLAB INC.
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.