Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12272930 | Method for producing a spark plug, and spark plug | — | 2025-04-08 |
| 11437788 | Method for manufacturing a spark plug electrode system and a spark plug, spark plug electrode system, and spark plug | Igor Orlandini | 2022-09-06 |
| 11391260 | Method for operating an internal combustion engine, and controller for carrying out the method | Andreas Hastall, Robert Manfred Zielke | 2022-07-19 |
| 6979775 | Security apparatus and method | Bryan D. Ritter | 2005-12-27 |
| 4631038 | Protective capsule | Betty J. Ritter | 1986-12-23 |