Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11745474 | Composite glass with an intermediate film that changes colour depending on the viewing angle | Maik Rudolf Johann SCHERER, Raphael Dehmel, Kai Herrmann SCHERER, Daniel Lenssen, Michael Rahm | 2023-09-05 |
| 10486455 | Application device | Josef Schinabeck, André Gregarek, Winfried Hoffmuller, Christoph Gebauer, Christoph Mengel +1 more | 2019-11-26 |
| 9486719 | Filter element, device for folding a filter medium web and process for producing a zigzag-folded filter element | Stefan Walz | 2016-11-08 |
| 9399366 | Security element | Winfried Hoffmuller, Marius Dichtl, Manfred Heim | 2016-07-26 |
| 8920663 | Production of a security element provided with colored micro-depressions | — | 2014-12-30 |
| 8685488 | Method for producing a microstructure | Winfried Hoffmuller, Theodor Burchard, Marius Dichtl, Patrick Renner, Michael Rahm +4 more | 2014-04-01 |
| 8603615 | Security element | — | 2013-12-10 |
| 8449969 | Security element for security papers and valuable documents | Theo Burchard | 2013-05-28 |
| 8333870 | Security paper | Theo Burchard, Reinhard Tauber, Rudolf Seidler | 2012-12-18 |
| 8317231 | Security element with metallization | Manfred Heim, Bernhard Wiedner, Marius Dichtl | 2012-11-27 |
| 7989055 | Security element and method for producing the same | Theo Burchard, Lars Hoffmann | 2011-08-02 |
| 7758078 | Security element and method for producing the same | — | 2010-07-20 |
| 7637537 | Laminated multi-layer card with an inlaid security element in the form of relief structures | Günter Endres, Manfred Engl | 2009-12-29 |
| 7479320 | Security element and method for producing the same | Theo Burchard, Lars Hoffmann | 2009-01-20 |