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

David E. Kowalski

PSPipp Mobile Storage Systems: 3 patents #3 of 14Top 25%
Grandville, MI: #58 of 219 inventorsTop 30%
Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,331,081 of 4,157,543Top 35%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12304735 Single track mobile carriage system Andrew B. Hartmann 2025-05-20
11997963 Trays for plant cultivation Thomas A. French, Delos A. Rockwell 2024-06-04
11116148 Trays for plant cultivation Thomas A. French, Delos A. Rockwell 2021-09-14