Granted Patent
Utility
US 5,062,086 · App. 07/573,595
Calculation of raypaths and wavepaths from traveltime tables for the tomographic estimation of transmission velocities
Inventors:
William S. Harlan, Shein S. Wang, Douglas W. Hanson
Patented Case
View Patent ↗
Granted: Oct 29, 1991
Filed: Aug 27, 1990
Inventors
William S. Harlan
Shein S. Wang
Douglas W. Hanson
Assignee (at issue)
Conoco 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.