Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DH

David E. Hackett — 3 Patents in 2018

Caterpillar: 3 patents #44 of 863Top 6%
Nashville, IL: #2 of 34 inventorsTop 6%
Illinois: #805 of 7,998 inventorsTop 15%
Overall (2018): #79,038 of 503,207Top 20%
3 Patents 2018

Issued Patents 2018

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10036314 Fuel system flush circuitry and method for operating the same Martin Lehman, Scott F. Shafer 2018-07-31 $17,827,000
10036401 Recirculating pump inlet Scott F. Shafer 2018-07-31 $17,827,000
9957940 Fluid conditioning module Scott F. Shafer, Steven Y. Tian, Martin Lehman 2018-05-01 $28,576,000