Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CW

Charles N. Warren — 4 Patents in 2021

JDJohn Deere: 4 patents #49 of 734Top 7%
Cedar Falls, IA: #1 of 59 inventorsTop 2%
Iowa: #82 of 1,785 inventorsTop 5%
Overall (2021): #52,212 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11203383 Operator station suspension system Byron N. Manternach, Brandon Lee, Sungkwon Choi, Todd Rea, Daniel J. DeBoer +4 more 2021-12-21
10994794 Power distribution through undercarriage idler wheels Edwin R. Kreis, Dennis A. Bowman 2021-05-04
D913334 Air intake device for an internal combustion engine Emily K. Kuczmarski, Norman K. Keller, Axel J. Hoogland, Paul Thomas Bruss, Michael J. Schuller +6 more 2021-03-16
D910086 Work machine Eric A. Keen, Brian M. Huenink, Richard N. Knowles, Thomas C. Boe, Felix Nagelin +7 more 2021-02-09