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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stein Haavardstein — 1 Patent in 2021

PPPhillips Petroleum: 1 patents #127 of 147Top 90%
Madlasandnes, NO: #2 of 5 inventorsTop 40%
Overall (2021): #251,959 of 548,734Top 50%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11136862 Behind casing wash and cement Rick D. Watts, Lars Hovda, James C. Stevens, Dan Mueller, Brett Borland +2 more 2021-10-05 $886,036,000