Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6920926 | Top drive well casing system | Lemuel T. York, Beat Kuttel | 2005-07-26 |
| 6840493 | Valve actuator | Lemuel T. York, Beat Kuttel | 2005-01-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6920926 | Top drive well casing system | Lemuel T. York, Beat Kuttel | 2005-07-26 |
| 6840493 | Valve actuator | Lemuel T. York, Beat Kuttel | 2005-01-11 |