Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
EH

E. Frederic Herkenhoff

Chevron: 3 patents #1,350 of 4,788Top 30%
Orinda, CA: #226 of 531 inventorsTop 45%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,518,295 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9014985 System and method for compensating time and offset varying near-surface effects in seismic data background Richard B. Alford 2015-04-21
7679990 Methods for acquiring and processing seismic data from quasi-simultaneously activated translating energy sources Joseph P. Stefani 2010-03-16
7230879 Method and apparatus for true relative amplitude correction of seismic data for normal moveout stretch effects Richard B. Alford, Harry L. Martin 2007-06-12