Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997604 | Method for production of molded articles of silicon nitride | Beat Hofer | 1991-03-05 |
| 4220842 | Method of removing material from a workpiece | Ekkehard Sturmer | 1980-09-02 |