Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert T. Casper — 3 Patents in 2021

JDJohn Deere: 3 patents #86 of 734Top 15%
Davenport, IA: #5 of 37 inventorsTop 15%
Iowa: #138 of 1,785 inventorsTop 8%
Overall (2021): #65,845 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11191207 Commodity metering system for work vehicle and calibration method for same Andrew W. Harmon, William Douglas Graham 2021-12-07 $113,775,000
11154004 Agricultural seed sensing and control system Terry L. Snipes, William C. Hughes, Gerald E. Rains, Jason D. Walter, Elijah B. Garner +3 more 2021-10-26 $70,974,000
11140811 Commodity metering system for work vehicle with rollers in staggered arrangement Andrew W. Harmon, Michael E. Frasier, William Douglas Graham 2021-10-12 $57,329,000