Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6029945 | Self-closing valve | — | 2000-02-29 |
| 5738141 | WC-cistern filling valve | Norbert Fuchs, Gerhard H. Pieper | 1998-04-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6029945 | Self-closing valve | — | 2000-02-29 |
| 5738141 | WC-cistern filling valve | Norbert Fuchs, Gerhard H. Pieper | 1998-04-14 |