Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. Lockman — 2 Patents

Chevron: 2 patents #1,782 of 4,788Top 40%
Pawhuska, OK: #3 of 11 inventorsTop 30%
Oklahoma: #4,543 of 12,736 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David A. Lockman has been granted 2 US patents while listed as an inventor at Chevron. The first was granted in 2009 and the most recent in March 2015. David A. Lockman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David A. Lockman in Pawhuska, OK, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8992840 Multiple component feed methods and systems David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy +7 more 2015-03-31
7615596 Multiple component feed methods and systems David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy +7 more 2009-11-10