Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941551 | Drain valve for a sanitary cistern | Gerhard Rothstein, Heinz Wessel | 2021-03-09 |
| 9187888 | Drain, in particular shower drain | Frank Hennes | 2015-11-17 |
| 9021628 | Drain, in particular for floor level showers | Patrick Schäfer, Reinhard W. Schulte, Ulrich Groβkopf, Klaus Skrodolies | 2015-05-05 |
| 6435218 | Pipe with crack stopper feature, and process of protecting a pipe against propagation of cracks | Hans-Georg Hillenbrand, Ingo von Hagen, Gerd Junker, Gerhard Knauf | 2002-08-20 |
| 5542160 | Attachment element for the attachment of straps, belts or loop on edges of flat pieces of material | — | 1996-08-06 |