Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10932544 | Pen having an integrally injection-moulded coating sleeve | Christina Zech | 2021-03-02 |
| 10849404 | Pencil comprising an integrally injection-moulded layered casing | Christina Zech | 2020-12-01 |
| 6408880 | Plug-in coupling for connecting pipelines, hoses or similar | — | 2002-06-25 |
| 5447177 | Separating device for conduits | Norbert Ricken | 1995-09-05 |