Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6971937 | Method of manufacturing a spark plug for an internal combustion engine | Lars Menken, Klaus Hrastnik, Dietrich Trachte, Klaus Czerwinski | 2005-12-06 |
| 6849342 | Metal-ceramic composite material body and method for producing the same | Otto W. Stenzel, Klaus Czerwinski, Iris Postler | 2005-02-01 |