Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10816431 | Leak detection system for underground access chambers using conductivity | Charles A. Hansen, Sean Blottie, Cory Peters, Sonja Hansen, Bianca Hansen +1 more | 2020-10-27 |
| 10557772 | Multi-sensor inspection for identification of pressurized pipe defects that leak | Charles A. Hansen | 2020-02-11 |