Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900509 | Process for manufacturing cast iron containing vermicular graphite | Werner Menk | 1990-02-13 |
| 4601751 | Process for the production of cast iron containing spherical graphite | Ivo Henych, Klaus Hornung, Werner Menk | 1986-07-22 |