Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11320474 | Portable device for noise measurement at locations along a path to determine one or more indications | Albert W. Chau | 2022-05-03 |
| 11255185 | Advanced drill string communication system and method | Albert W. Chau | 2022-02-22 |