Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686079 | Fuel cell for downhole power systems | Donald E. Hensley, Kenneth L. Havlinek | 2004-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686079 | Fuel cell for downhole power systems | Donald E. Hensley, Kenneth L. Havlinek | 2004-02-03 |