Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6199519 | Free-piston engine | — | 2001-03-13 |
| 4358658 | Laser weld jig | David Haupt | 1982-11-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6199519 | Free-piston engine | — | 2001-03-13 |
| 4358658 | Laser weld jig | David Haupt | 1982-11-09 |