Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6557629 | Wellhead isolation tool | Henry Wong, Roy W. Benefield, George E. Guthrie | 2003-05-06 | $3,928,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6557629 | Wellhead isolation tool | Henry Wong, Roy W. Benefield, George E. Guthrie | 2003-05-06 | $3,928,000 |