Granted Patent
Utility
US 6,239,084 · App. 09/358,633
Viscosity drift control in overbased detergents
Inventors:
Theo I. Eliades, Ronald J. Muir, Leonard A. Matthews
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Jul 21, 1999
Inventors
Theo I. Eliades
Ronald J. Muir
Leonard A. Matthews
Assignee (at issue)
Crompton 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.