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

Douglas K. Schack — 4 Patents

Intel: 4 patents #8,473 of 30,777Top 30%
Cold Spring, KY: #8 of 27 inventorsTop 30%
Kentucky: #2,672 of 11,577 inventorsTop 25%
Overall (All Time): #1,068,329 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12195276 AS/RS lift having vertically-aligned dual carriages Ralf Buerkle, Jonathon Cleary, Charles Christopher Lingamfelter 2025-01-14
11873163 AS/RS lift having vertically-aligned dual carriages Ralf Buerkle, Jonathon Cleary, Charles Christopher Lingamfelter 2024-01-16
11198560 AS/RS lift having vertically-aligned dual carriages Ralf Buerkle, Jonathon Cleary, Charles Christopher Lingamfelter 2021-12-14
10611568 AS/RS lift having vertically-aligned dual carriages Ralf Buerkle, Jonathon Cleary, Charles Christopher Lingamfelter 2020-04-07