Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Patrick J. Duffy — 2 Patents in 2021

WHWhirlpool: 2 patents #83 of 573Top 15%
Benton Harbor, MI: #5 of 32 inventorsTop 20%
Michigan: #1,612 of 9,874 inventorsTop 20%
Overall (2021): #124,696 of 548,734Top 25%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11162689 Cooktop with hinged grates Alexandre Machado Bardal, Randall Vernen Crawford, Ken E. Johnson, Michele Harpring Johnson, John Ryan McNally +4 more 2021-11-02 $12,855,000
D926520 Cooking burner Victor H. Manrique 2021-08-03