Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D504169 | Sink | Wolfgang Gross, Jay Beaumont, Ronald Lemme | 2005-04-19 |
| D497662 | Sink | Wolfgang Gross, Jay Beaumont, Ronald Lemme | 2004-10-26 |
| D467650 | Sink | — | 2002-12-24 |
| D467649 | Sink | — | 2002-12-24 |
| D465271 | Sink | — | 2002-11-05 |
| 5870783 | Kitchen sink | Elmar Stoll, Melchior Lanz, Fritz Berchtold, Martin Bolli | 1999-02-16 |
| D319301 | Sink | — | 1991-08-20 |
| D319302 | Sink | — | 1991-08-20 |
| 5016298 | Accessory set for kitchen sinks | Andre Monnard | 1991-05-21 |