Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10753520 | Connection system having a threaded nut | Hans Juergen Hopf, Michael Hopf, Norbert Kassal | 2020-08-25 |
| 8695624 | Multi-way valve and method of producing same | Hans Juergen Hopf, Norbert Kassai, Michael Hopf | 2014-04-15 |