Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6715535 | Method of and device for rotary casting | Friedhelm Kahn, Joachim Kahn, Gerhard Eisenberger, Horst Paul Grüness, Johann Winkler +5 more | 2004-04-06 |
| 6158408 | Cylinder head and casting core for producing oil channels | — | 2000-12-12 |
| 5983844 | Cylinder head with cast cooling water channels as well as method and casting cores for producing same | — | 1999-11-16 |