Granted Patent
Utility
US 5,089,994 · App. 07/656,546
Tomographic estimation of seismic transmission velocities from constant offset depth migrations
Inventors:
Wiliam S. Harlan, Douglas W. Hanson, Shein S. Wang
Patented Case
View Patent ↗
Granted: Feb 18, 1992
Filed: Feb 14, 1991
Inventors
Wiliam S. Harlan
Douglas W. Hanson
Shein S. Wang
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.