Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David E. Ruffin — 1 Patent

ARAtlantic Richfield: 1 patents #550 of 1,068Top 55%
Moreno Valley, CA: #78 of 190 inventorsTop 45%
California: #249,524 of 386,348 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David E. Ruffin has been granted 1 US patent while listed as an inventor at Atlantic Richfield. All of these patents were granted in 2002. David E. Ruffin ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David E. Ruffin in Moreno Valley, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6482762 NOx conversion catalyst rejuvenation process Ryan M. Bonderson, Andrew P. Voss 2002-11-19