Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772842 | Curved flapper valve | Alfred Lara Hernandez, Juan A. Campos | 2004-08-10 |
| 6715557 | Tool string | Rodney J. Wetzel, Stephen Meschall, Clay W. Milligan, Jr. | 2004-04-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772842 | Curved flapper valve | Alfred Lara Hernandez, Juan A. Campos | 2004-08-10 |
| 6715557 | Tool string | Rodney J. Wetzel, Stephen Meschall, Clay W. Milligan, Jr. | 2004-04-06 |