Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7091872 | Controlled power source for underground line location | Stevan Polak, James L. Long, Joseph Shtargot | 2006-08-15 |
| 6815953 | Detecting field distortion in underground line location | — | 2004-11-09 |