Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5913391 | Damper | Mark Steven Jeffries, Archie L. Evans | 1999-06-22 |
| 5896959 | Bi-directional damper with a self-centering mechanism | Mark Steven Jeffries | 1999-04-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5913391 | Damper | Mark Steven Jeffries, Archie L. Evans | 1999-06-22 |
| 5896959 | Bi-directional damper with a self-centering mechanism | Mark Steven Jeffries | 1999-04-27 |