Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479133 | Document having a value | Gerhard Stenzel | 2002-11-12 |
| 6454166 | Security document with a security component and method for the production thereof | Gerhard Stenzel | 2002-09-24 |
| 6382677 | Security element and method for producing same | Gregor Grauvogl, Jurgen Schutzmann, Friedrich Kretschmar | 2002-05-07 |
| 6383618 | Printed document comprising a luminescent authenticity feature | Gerhard Schwenk, Gerhard Stenzel | 2002-05-07 |
| 6376017 | Method and device for producing a foil material | Gregor Grauvogl | 2002-04-23 |
| 6344261 | Printed document having a value and comprising a luminescent authenticity feature based on a host lattice | Gerhard Schwenk, Gerhard Stenzel | 2002-02-05 |
| 6337752 | Data carrier having an optically variable element and methods for producing it | Christoph Heckenkamp, Gerhard Stenzel | 2002-01-08 |