Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790036 | Method and device for the automatic cleaning of a toilet seat | Ernst Vogeli, Jean-Jacques Asper, Erwin Zurcher | 1988-12-13 |
| 4536899 | Toilet with flushing device and self-cleaning seat | — | 1985-08-27 |