Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890011 | Energy-absorbing bumper | Eduardo Arvelo, Thomas Frank, Klaus Rathje, Maya Ziegs | 2005-05-10 |
| 6394241 | Energy absorbing shear strip bender | Stanley P. Desjardins | 2002-05-28 |
| 6112609 | Gear arrangement | — | 2000-09-05 |