Granted Patent
Utility
US 6,737,392 · App. 10/458,912
MDEA ester quats with high content of monoester in blends with tea ester quats
Inventors:
Robert O. Keys, Christopher J. Toney, David L. Gefvert
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Jun 11, 2003
Inventors
Robert O. Keys
Christopher J. Toney
David L. Gefvert
Assignee (at issue)
Goldschmidt Chemical 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.