Granted Patent
Utility
US 6,277,257 · App. 09/271,687
Electrokinetic high pressure hydraulic system
Inventors:
Phillip H. Paul, David J. Rakestraw, Don W. Arnold, Kenneth R. Hencken, Joseph S. Schoeniger, David W. Neyer
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Mar 18, 1999
Inventors
Phillip H. Paul
David J. Rakestraw
Don W. Arnold
Kenneth R. Hencken
Joseph S. Schoeniger
David W. Neyer
Assignee (at issue)
Sandia 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.