Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581687 | Detecting an underground object | — | 2017-02-28 |
| 9157993 | Detecting an underground object | — | 2015-10-13 |
| 8428107 | Code detection by using genetic algorithms | Gregory C. Best, Bruce D. Riter | 2013-04-23 |
| 6587891 | Method and apparatus for determining position using a handheld personal computer and a cradle | Greg Janky | 2003-07-01 |
| 6496874 | Method and apparatus for determining position using a handheld personal computer and a cradle | Greg Janky | 2002-12-17 |