Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12072053 | Watertight electrical conduit | Andrea Ticci, Paul Ridge | 2024-08-27 |
| 11761810 | Tank maintenance access chamber | Lee B. Markham, William S. Nelson, Paul Ridge | 2023-09-19 |
| 11248945 | Tank maintenance access chamber | Lee B. Markham, William S. Nelson, Paul Ridge | 2022-02-15 |
| 10714920 | Electronic transition chamber | Paul Ridge | 2020-07-14 |