Granted Patent
Utility
US 6,717,501 · App. 09/909,469
Downhole data transmission system
Inventors:
David R. Hall, H. Tracy Hall, Jr., David Pixton, Scott Dahlgren, Joe Fox
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Jul 18, 2001
Inventors
David R. Hall
H. Tracy Hall, Jr.
David Pixton
Scott Dahlgren
Joe Fox
Assignee (at issue)
Novatek Engineering 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.