Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776255 | Methods and apparatus of suppressing tube waves within a bore hole and seismic surveying systems incorporating same | Daryl Haefner | 2004-08-17 |
| 6705425 | Regenerative combustion device | — | 2004-03-16 |