Granted Patent
Utility
US 6,797,180 · App. 10/136,174
Dewatering sand with surfactants
Inventors:
Terrence P. Small, Donald Carroll Roe, William Wendel
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: May 1, 2002
Inventors
Terrence P. Small
Donald Carroll Roe
William Wendel
Assignee (at issue)
GE Betz, 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.