Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651988 | Compact actuator with hydraulic seal | George G. Zipfel, Jr. | 2003-11-25 |
| 5438627 | Reactance-mass actuator | Thomas Edward Smith, George G. Zipfel, Jr. | 1995-08-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651988 | Compact actuator with hydraulic seal | George G. Zipfel, Jr. | 2003-11-25 |
| 5438627 | Reactance-mass actuator | Thomas Edward Smith, George G. Zipfel, Jr. | 1995-08-01 |