Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert C. Emmert — 8 Patents

JDJohn Deere: 8 patents #582 of 5,518Top 15%
Waverly, IA: #8 of 43 inventorsTop 20%
Iowa: #1,974 of 15,303 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Robert C. Emmert has been granted 8 US patents while listed as an inventor at John Deere. The first was granted in 2008 and the most recent in October 2022. Robert C. Emmert ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Robert C. Emmert in Waverly, IA, US.

Patents per Year

Patents granted per year, 2008 to 2022Bar chart with a peak of 2 patents in 2008.peak 22008: 2 patents20082018: 1 patents20182019: 1 patents20192020: 1 patents20202021: 1 patents20212022: 2 patents2022

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11473574 Positive displacement pump including an unloading device Thomas Butts 2022-10-18 $77,312,000
11273861 Hydraulic steering system Troy E. Schick 2022-03-15 $87,099,000
11131303 Positive displacement pump including an unloading device Thomas Butts 2021-09-28 $77,536,000
10633015 Hydraulic steering system Troy E. Schick 2020-04-28 $29,919,000
10309396 Positive displacement pump including an unloading device Thomas Butts 2019-06-04 $48,868,000
9968021 Work vehicle multi-coupler with breakaway feature Michael A. Holland, Fernando Sandoval, Nathanael K. Rehn 2018-05-15 $53,567,000
7401465 Dual pump dual pressure hydraulic circuit Gregory E. Sparks, Gary L. Dostal 2008-07-22 $58,151,000
7401623 Double-acting valve unit Phillip S. Roe 2008-07-22 $58,151,000