Granted Patent
Utility
US 6,587,798 · App. 09/997,221
Method and system for determining the speed of sound in a fluid within a conduit
Inventors:
Alan D. Kersey, Daniel L. Gysling, James D. Paduano
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Nov 28, 2001
Inventors
Alan D. Kersey
Daniel L. Gysling
James D. Paduano
Assignee (at issue)
Weatherford/Lamb, 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.