Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10431919 | Connector for electrical power cables | Volker Markgraf, Gert Stauch | 2019-10-01 |
| 8317443 | Shear screw | Ing Gart Stauch, Volker Markgraf, Rainer Bachmann | 2012-11-27 |
| 8079884 | Clamping screw | Gert Stauch, Volker Markgraf, Jurgen Krauss | 2011-12-20 |