Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11336013 | Antenna for underground line location | — | 2022-05-17 |
| 10162039 | Systems and methods for object detection | — | 2018-12-25 |
| 9869744 | Locator self-test | — | 2018-01-16 |
| 9733379 | Line locator with a metal detector | Chunning Zhang | 2017-08-15 |
| 7356421 | Precise location of buried metallic pipes and cables in the presence of signal distortion | Thorkell Gudmundsson, Jim Waite, Johan Overby, Niklas Lindstrom | 2008-04-08 |
| 7091872 | Controlled power source for underground line location | Russell N. Bigelow, James L. Long, Joseph Shtargot | 2006-08-15 |
| 6407550 | Line locator with accurate horizontal displacement detection | Gopalakrishnan R. Parakulam | 2002-06-18 |
| 6130539 | Automatic gain control for a line locator | — | 2000-10-10 |