Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6260891 | Press-fitting for non removable tube coupling | Herbert Foering, Rainer Franzen | 2001-07-17 |
| 6241290 | Pipe coupling | Herbert Foering, Michael Berane, Karl-Heinz Hartings, Johannes Schurr | 2001-06-05 |
| 6155613 | Pipe joint | Erich Quadflieg, Christoph Bunsen, Friedrich Lenze, Martin Schluter | 2000-12-05 |
| 6131956 | Pipe coupling | Herbert Foering, Michael Berane, Karl-Heinz Hartings, Johannes Schurr | 2000-10-17 |