Granted Patent
Utility
US 6,364,018 · App. 09/579,147
Lightweight methods and compositions for well treating
Inventors:
Harold Dean Brannon, Allan R. Rickards, Christopher John Stephenson
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: May 25, 2000
Inventors
Harold Dean Brannon
Allan R. Rickards
Christopher John Stephenson
Assignee (at issue)
BJ SERVICES, LLC
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.