Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11105197 | Method and apparatus for pre-loading a piezoelectric transducer for downhole acoustic communication | John-Peter van Zelm, John Godfrey McRory | 2021-08-31 |
| 10669842 | Method and apparatus for pre-loading a piezoelectric transducer for downhole acoustic communication | John-Peter van Zelm, John Godfrey McRory | 2020-06-02 |