Granted Patent
Utility
US 5,710,048 · App. 08/706,871
Determination of surfactant concentration in an aqueous fluid
Inventors:
Joseph Michael Ernst, Harold Noble
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Sep 3, 1996
Inventors
Joseph Michael Ernst
Harold Noble
Assignee (at issue)
Cincinnatti Milacron 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.