Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345707 | Frictionless damper | — | 2002-02-12 |
| 5487454 | Leakage bellows of hydraulic damper protected by oppositely wound coil springs | John C. Metzger | 1996-01-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345707 | Frictionless damper | — | 2002-02-12 |
| 5487454 | Leakage bellows of hydraulic damper protected by oppositely wound coil springs | John C. Metzger | 1996-01-30 |