Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10969399 | Advanced mechanical shock resistance for an accelerometer in an inground device and associated methods | Albert W. Chau, Kenneth J. Theimer | 2021-04-06 |
| 10648326 | Inground device with advanced transmit power control and associated methods | Albert W. Chau | 2020-05-12 |
| 10240456 | Inground device with advanced transmit power control and associated methods | Albert W. Chau | 2019-03-26 |