{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Chevron", "item": "https://www.patentleaderboard.com/company/chevron"}, {"@type": "ListItem", "position": 3, "name": "E. Frederic Herkenhoff", "item": "https://www.patentleaderboard.com/inventor/fl:e._ln:herkenhoff-1"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
EH

E. Frederic Herkenhoff — 3 Patents

Chevron: 3 patents #1,355 of 4,788Top 30%
Orinda, CA: #227 of 531 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
E. Frederic Herkenhoff has been granted 3 US patents while listed as an inventor at Chevron. The first was granted in 2007 and the most recent in April 2015. E. Frederic Herkenhoff ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list E. Frederic Herkenhoff in Orinda, CA, US.

Patents per Year

Patents granted per year, 2007 to 2015Bar chart with a peak of 1 patents in 2007.peak 12007: 1 patents20072010: 1 patents20102015: 1 patents2015

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9014985 System and method for compensating time and offset varying near-surface effects in seismic data background Richard B. Alford 2015-04-21 $190,466,000
7679990 Methods for acquiring and processing seismic data from quasi-simultaneously activated translating energy sources Joseph P. Stefani 2010-03-16 $102,053,000
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 $731,001,000