Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert C. Emmert — 1 Patent in 2021

JDJohn Deere: 1 patents #273 of 734Top 40%
Waverly, IA: #2 of 5 inventorsTop 40%
Iowa: #535 of 1,785 inventorsTop 30%
Overall (2021): #285,710 of 548,734Top 55%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11131303 Positive displacement pump including an unloading device Thomas Butts 2021-09-28 $77,536,000