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USPTO Patent Rankings Data through Sept 30, 2025
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William R. Ruhe, Jr. — 2 Patents in 2018

Chevron: 2 patents #69 of 337Top 25%
Travis Field, CA: #1 of 2 inventorsTop 50%
California: #12,239 of 60,411 inventorsTop 25%
Overall (2018): #90,596 of 503,207Top 20%
2 Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9994786 Polyester dispersants, synthesis and use thereof 2018-06-12
9957461 Polyester dispersants, synthesis and use thereof 2018-05-01