Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8827314 | Security document | Georg Depta | 2014-09-09 |
| 8382163 | Security paper | Michael Boehm, Friedrich Kretschmar | 2013-02-26 |
| 8137899 | Data support with an opticallly variable element | Johann Muller, Jürgen Zerbes, Christoph Baldus | 2012-03-20 |
| 7690300 | Steel intaglio printing method for producing a security document and steel intaglio printing plate and semifinished products therefor and method for production thereof | Eckhard Braun | 2010-04-06 |
| 7686341 | Data carrier, method for the production thereof and gravure printing plate | Roger Adamczyk, Karlheinz Mayer, Peter Franz | 2010-03-30 |
| 7537161 | Method and device for checking authenticity of a security element | Karlheinz Mayer, Georg Depta | 2009-05-26 |
| 7357077 | Data carrier, method for the production thereof and gravure printing plate | Roger Adamczyk, Karlheinz Mayer, Peter Franz | 2008-04-15 |
| 7350461 | Intaglio printing process for all-over printing of large areas | Karlheinz Mayer, Johann Muller, Peter Franz | 2008-04-01 |
| 7213512 | Steel gravure method for the production of a security document, steel gravure plate and semi-product for the same and method for production thereof | Eckhard Braun | 2007-05-08 |
| 7040663 | Value document | Eckhard Braun, Wittich Kaule | 2006-05-09 |
| 6811858 | Gravure process for full printing of large surfaces | Karlheinz Mayer, Johann Muller, Peter Franz | 2004-11-02 |
| 6283509 | Data carrier with an optically variable element | Eckhard Braun, Johann Muller, Franz Daniel | 2001-09-04 |
| 6183018 | Data carrier with optically variable color | Eckhard Braun | 2001-02-06 |
| 6036233 | Data carrier with an optically variable element | Eckhard Braun, Johann Muller, Franz Daniel | 2000-03-14 |
| 6036232 | Data carrier with an optically variable element | Wittich Kaule | 2000-03-14 |
| 5317970 | Method and system for reversibly regenerating an imaged planographic printing form, particularly for use in offset printing | Barbara Nussel, Hartmut Fuhrmann, Horst Dauer | 1994-06-07 |
| 4958564 | Method and system for preparing a planographic printing form | Hartmut Fuhrmann | 1990-09-25 |
| 4846065 | Printing image carrier with ceramic surface | Otto Mayrhofer, Hartmut Fuhrmann | 1989-07-11 |