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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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James E. Pearson — 2 Patents in 2021

RCRobertshaw Controls: 2 patents #1 of 14Top 8%
Downers Grove, IL: #8 of 46 inventorsTop 20%
Illinois: #1,310 of 8,822 inventorsTop 15%
Overall (2021): #152,158 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11112025 Water valve guide tube with integrated weld ring and water valve incorporating same Shane Duncan Bartow, Paul Berkley 2021-09-07
11047501 Normally open gas valve Tony Leeseberg, Stephen Sapp, Curtis Phillips 2021-06-29