Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8878537 | Method and apparatus to minimize gradient errors in buried utility depth measurements | Ross Edward Spain | 2014-11-04 |
| 7938075 | Automated seed detection and planting synchronization apparatus, method and system | Matthew K. Glendenning, Daniel Goldman, Jason J. Kelsick, David C. Smith | 2011-05-10 |
| 7116760 | System and method for single-ended line analysis for qualification and mapping | David R. Smith, Richard Liberman, Duane Eareckson, Paul Wyar | 2006-10-03 |
| 4628265 | Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment | Richard Williams | 1986-12-09 |
| 4514692 | Metal detector and discriminator using differentiation for background signal suppression | Richard Williams | 1985-04-30 |