Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373582 | Acoustically controlled electro-mechanical circulation sub | John M. Bednar, Terry V. Jones | 1983-02-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373582 | Acoustically controlled electro-mechanical circulation sub | John M. Bednar, Terry V. Jones | 1983-02-15 |