Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David O'Brien — 7 Patents

JDJohn Deere: 6 patents #802 of 5,518Top 15%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
David O'Brien has been granted 7 US patents while listed as an inventor at John Deere. The first was granted in 1992 and the most recent in November 2023. David O'Brien ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David O'Brien in Dublin, IA, IE.

Patents per Year

Patents granted per year, 1992 to 2023Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19922005: 1 patents20052006: 1 patents20062020: 1 patents20202021: 1 patents20212022: 1 patents20222023: 1 patents2023

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11807509 Material handling apparatus for a utility vehicle Arun Narayanan, Jason Simmons, Christopher P. Kelley, Devendra Thakur, Rajan Kadam +1 more 2023-11-07 $42,317,000
11299380 Convertible carriage Arun Narayanan, Jason Simmons 2022-04-12 $69,044,000
11155979 Loader attachments coupler Arun Narayanan, Jason Simmons 2021-10-26 $70,974,000
10815634 Loader attachments coupler Arun Narayanan, Jason Simmons 2020-10-27 $21,439,000
6991398 Tool coupler Ronald A. Leemans, George Robertson, Gregory K. Werner 2006-01-31 $45,701,000
6957705 Loader linkage Gregory K. Werner, Michael Dean Worley, George Robertson, Dusan John Hvolka 2005-10-25 $17,601,000
5080478 Apparatus for testing dark adaptation Thomas P. Grennan, Peter Davison 1992-01-14