Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5005549 | Method and apparatus for recognizing a faulty combustion in an internal combustion engine | Udo Frinzel | 1991-04-09 |
| 4945274 | Angular pulse generator with flux return | — | 1990-07-31 |