Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10557553 | Sealing ring | Franz Braun | 2020-02-11 |
| 8656688 | Capper | Markus Schönfelder, Lutz Kampmann | 2014-02-25 |
| 4543009 | Internal endwise connector for channel profile | Jochen Schmitz, Peter Scheller | 1985-09-24 |