| 9841503 |
Optical ground tracking apparatus, systems, and methods |
Mark S. Olsson, Eric M. Chapman, Sequoyah Aldridge |
2017-12-12 |
| 9824433 |
Pipe inspection system camera heads |
Mark S. Olsson, Michael J. Martin, Stephanie M. Bench, Tran M. Nguyen |
2017-11-21 |
| 9798033 |
Sonde devices including a sectional ferrite core |
Mark S. Olsson, Jan Soukup, Justin W. Taylor |
2017-10-24 |
| 9784837 |
Optical ground tracking apparatus, systems, and methods |
Mark S. Olsson, Michael J. Martin, Sequoyah Aldridge |
2017-10-10 |
| 9746572 |
Electronic marker devices and systems |
Mark S. Olsson, Stephanie M. Bench, Jan Soukup |
2017-08-29 |
| 9746573 |
Portable buried utility locating systems with current signal data communication |
Mark S. Olsson, David A. Cox, Michael J. Martin, Amos H. Jessup |
2017-08-29 |
| 9696448 |
Ground tracking devices and methods for use with a utility locator |
Mark S. Olsson, David A. Cox, Ryan B. Levin, Sequoyah Aldridge |
2017-07-04 |
| 9696447 |
Buried object locating methods and apparatus using multiple electromagnetic signals |
Mark S. Olsson, Dawn E. Schaffer, Michael J. Martin, David A. Cox |
2017-07-04 |
| 9684090 |
Nulled-signal utility locating devices, systems, and methods |
Mark S. Olsson, Jan Soukup |
2017-06-20 |
| 9678577 |
Magnetic sensing user interface device methods and apparatus using electromagnets and associated magnetic sensors |
Austin Rutledge, Michael J. Martin, Mark S. Olsson |
2017-06-13 |
| 9651711 |
Boring inspection systems and methods |
Mark S. Olsson, Eric M. Chapman, Alex Warren |
2017-05-16 |
| 9638824 |
Quad-gradient coils for use in locating systems |
Mark S. Olsson, Michael J. Martin, Ryan B. Levin |
2017-05-02 |
| 9632202 |
Economical magnetic locator apparatus and methods |
Mark S. Olsson |
2017-04-25 |
| 9599449 |
Systems and methods for locating buried or hidden objects using sheet current flow models |
— |
2017-03-21 |