Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6438070 | Hydrophone for use in a downhole tool | James R. Birchak, John W. Harrell | 2002-08-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6438070 | Hydrophone for use in a downhole tool | James R. Birchak, John W. Harrell | 2002-08-20 |