Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143349 | Valve with flow shield | Harald Korfgen, Heinz Hirsch | 1992-09-01 |
| 5044605 | Flow-control and shutoff valve | Harald Korfgen, Heinz Hirsch | 1991-09-03 |
| 5014736 | Shut-off and control valve | Harald Korfgen, Heinz Hirsch, Friedrich Wagner, Walter Grau | 1991-05-14 |
| 4606370 | Flow-switching water-mixing faucet assembly | Werner Geipel, Bruno Heimann | 1986-08-19 |