Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10018206 | Impeller having balance compensation | Christian Hammel | 2018-07-10 |
| 9638214 | Balancing weight for a fan wheel | Christian Hammel | 2017-05-02 |
| 5763869 | Data carrier having an electronic module | Franz Weikmann, Michael Lamla | 1998-06-09 |
| 4892336 | Antifalsification document having a security thread embedded therein and a method for producing the same | Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel | 1990-01-09 |
| 4756557 | Security document having a security thread embedded therein and methods for producing and testing the authenticity of the security document | Wittich Kaule, Gerhard Stenzel, Gerhard Schwenk | 1988-07-12 |