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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Alan G. Holmes — 4 Patents in 2021

General Motors: 4 patents #120 of 1,408Top 9%
Clarkston, MI: #2 of 85 inventorsTop 3%
Michigan: #640 of 9,874 inventorsTop 7%
Overall (2021): #54,542 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11035448 Multi-axis final drive assembly Joseph R. Littlefield 2021-06-15 $49,101,000
10982745 Planetary differential drive system Joseph R. Littlefield, Brendan M. Conlon 2021-04-20 $26,620,000
10920859 Two-speed electric drive-unit Brendan M. Conlon 2021-02-16 $45,829,000
10914378 Roller-gear shift by wire parking system Dumitru Puiu, Gurdeep Singh 2021-02-09 $41,459,000