Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8035390 | Omnidirectional sonde and line locator | Mark S. Olsson, Ray Merewether, David A. Cox, Michael J. Martin, Bradley D. Barnicoat +1 more | 2011-10-11 |
| 7498816 | Omnidirectional sonde and line locator | Mark S. Olsson, Ray Merewether, David A. Cox, Michael J. Martin, Bradley D. Barnicoat +1 more | 2009-03-03 |
| 7009399 | Omnidirectional sonde and line locator | Mark S. Olsson, Ray Merewether, David A. Cox, Michael J. Martin, Bradley D. Barnicoat +1 more | 2006-03-07 |