Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342810 | Zinc-containing, lead- and cadmium-free glass frits, method of their production and their use | Michel Claus | 1994-08-30 |
| 4977302 | Browning utensil for microwave ovens | Michel Claus, Robert Passerieux | 1990-12-11 |