Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11994248 | Gas line seal clamp and method of sealing a gas line | Chungeng Chen, Travis Cottle | 2024-05-28 |
| 10767803 | Split cap safety plug | Travis Cottle | 2020-09-08 |
| 10527217 | Launch system for underground gas main stop-off station | Philip J. Fowles, Joseph Mandara, Dennis R. Jarnecke | 2020-01-07 |
| 10189059 | Devices for cross bore safeguard during sewer system cleanouts | Douglas A. Staebler | 2019-01-29 |
| 9500311 | Directional insertion tool | Dennis R. Jarnecke | 2016-11-22 |