Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4541978 | Extrusion-fill method of producing an elastomeric spring | Michael L. Lauber, Mark R. Roodvoets | 1985-09-17 |
| 4493631 | Apparatus for producing variable-rate spring | Michael L. Lauber, Mark R. Roodvoets | 1985-01-15 |
| 4439125 | Adjustable die mechanism | Richard E. Burg, Louis Laurich, J. Richard McCarty | 1984-03-27 |