Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8683833 | Electronic access control handle set for a door lock | James S. Marschalek, Warren A. Simonsen, Ludger Voss, Norbert Voss, Stefan Parhofer | 2014-04-01 |
| 8539802 | Movement transmission device and method | — | 2013-09-24 |
| 8011217 | Electronic access control handle set for a door lock | James S. Marschalek, Warren A. Simonsen, Ludger Voss, Norbert Voss, Stefan Parhofer | 2011-09-06 |
| 7845201 | Electronic access control device | Norbert Voss, Ludger Voss, James S. Marschalek, Warren A. Simonsen, Stefan Parhofer | 2010-12-07 |
| 7770316 | Apparatus and method for securing firearms and cartridges | — | 2010-08-10 |
| 7703229 | Safety device for weapons and method for securing weapons provided with a safety device | Stefan Parhofer, Bernd Dietel | 2010-04-27 |
| 6912807 | Firearms safety device | Bernd Dietel | 2005-07-05 |