Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11702548 | Method for producing pigment fragments with a predefined internal and/or external contour, and pigment fragments | Christian Fuhse, Manfred Heim, Michael Rahm, Thomas Mang, Christoph Mengel +3 more | 2023-07-18 |
| 11034182 | Disc-shaped pigment, printing ink, security element and method of production | Christian Fuhse, Michael Rahm, Manfred Heim, Peter Schiffmann, Christoph Mengel | 2021-06-15 |
| 9683972 | Method and device for examining a sheet-shaped or card-shaped valuable document having a security feature having one or more cavities | Jan Domke, Stefan Kokrhoun, André Gregarek | 2017-06-20 |
| 9248689 | Method for the production of security elements having registered layers of designs | Winfried Hoffmuller, Manfred Heim, Theodor Burchard | 2016-02-02 |
| 9238383 | Method for the production of security elements having mutually registered designs | Winfried Hoffmuller, Manfred Heim | 2016-01-19 |
| 8685488 | Method for producing a microstructure | Winfried Hoffmuller, Theodor Burchard, Marius Dichtl, Michael Rahm, Manfred Heim +4 more | 2014-04-01 |