Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. Chekas — 1 Patent

JDJohn Deere: 1 patents #2,985 of 5,518Top 55%
Waterloo, IA: #187 of 348 inventorsTop 55%
Iowa: #8,818 of 15,303 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David A. Chekas has been granted 1 US patent while listed as an inventor at John Deere. All of these patents were granted in 2023. David A. Chekas ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David A. Chekas in Waterloo, IA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11598235 Internal combustion engine with internal oil heating of blowby gas Vijay J. Kavnekar, Dattatray B. Pingle, Randy R. Scarf 2023-03-07 $237,022,000