Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5870783 | Kitchen sink | Melchior Lanz, Fritz Berchtold, Max Ris, Martin Bolli | 1999-02-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5870783 | Kitchen sink | Melchior Lanz, Fritz Berchtold, Max Ris, Martin Bolli | 1999-02-16 |