Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796162 | Method and tool of tungsten/heavy metal alloy for hot-forging solid state copper and copper alloys | Robert Grill, Joachim Resch | 2004-09-28 |
| 5868810 | Filtering cartridge | Robert Grill, Silvia Kremshofer | 1999-02-09 |