Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1065003 | Wheel chock | Robert Krolski | 2025-03-04 |
| D987541 | Wheel chock | Robert Krolski | 2023-05-30 |
| 11021139 | Adjustable wheel chock system | Robert Krolski | 2021-06-01 |
| 10710824 | Curbed ramp | Robert Krolski, Lawrence Marmon | 2020-07-14 |
| 9694758 | Tiltable hauling device | Robert Krolski | 2017-07-04 |
| 8640826 | Trailer rub rail portable ladder | — | 2014-02-04 |
| 8448278 | Ramp system for cargo airplanes | — | 2013-05-28 |
| 8347439 | Reduced height combination ramp and load leveler | — | 2013-01-08 |
| 8061943 | Load leveler for different width open semi-trailers | — | 2011-11-22 |
| 7930788 | Reduced height combination ramp and load leveler | — | 2011-04-26 |