Issued Patents 2023
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11846095 | High frequency AC-powered drain cleaning and inspection apparatus and methods | Mark S. Olsson, Stephanie M. Bench, Inho Andy Shin, David A. Cox, Alexander L. Warren | 2023-12-19 |
| 11769956 | Multifunction buried utility locating clips | Mark S. Olsson, Allen P. Hoover, James F. Kleyn | 2023-09-26 |
| 11709289 | Sonde devices with a sectional ferrite core | Mark S. Olsson, Ray Merewether, Justin W. Taylor | 2023-07-25 |
| 11635479 | Auto-tuning circuit apparatus and methods | Stephanie M. Bench, Mark S. Olsson | 2023-04-25 |
| 11624851 | Electronic marker devices and systems | Mark S. Olsson, Stephanie M. Bench, Ray Merewether | 2023-04-11 |