Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8807479 | Movable bushing interface and taxi drive system | David Lane Charles, Donald J. Christensen | 2014-08-19 |
| 4541313 | Adjustable torque wrench | — | 1985-09-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8807479 | Movable bushing interface and taxi drive system | David Lane Charles, Donald J. Christensen | 2014-08-19 |
| 4541313 | Adjustable torque wrench | — | 1985-09-17 |