Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9841503 | Optical ground tracking apparatus, systems, and methods | Mark S. Olsson, Eric M. Chapman, Ray Merewether | 2017-12-12 |
| 9784837 | Optical ground tracking apparatus, systems, and methods | Mark S. Olsson, Michael J. Martin, Ray Merewether | 2017-10-10 |
| 9696448 | Ground tracking devices and methods for use with a utility locator | Mark S. Olsson, David A. Cox, Ryan B. Levin, Ray Merewether | 2017-07-04 |