Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8564295 | Method for simultaneously determining a plurality of different locations of the buried objects and simultaneously indicating the different locations to a user | Mark S. Olsson, Jeffrey A. Prsha, Dawn E. Shaffer, Ray Merewether, Michael J. Martin +2 more | 2013-10-22 |
| 7619516 | Single and multi-trace omnidirectional sonde and line locators and transmitter used therewith | Mark S. Olsson, Jeffrey A. Prsha, Dawn E. Shaffer, Ray Merewether, Michael J. Martin +2 more | 2009-11-17 |
| 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 |