Issued Patents All Time
Showing 76–89 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417968 | Diffractive surface pattern | Rene Staub | 2002-07-09 |
| 6369947 | Surface pattern | Rene Staub | 2002-04-09 |
| 6365907 | Device for recognizing diffraction optical markings | Rene Staub | 2002-04-02 |
| 6359734 | Surface pattern | Rene Staub | 2002-03-19 |
| 6324004 | Planar patterns with superimposed diffraction gratings | Rene Staub | 2001-11-27 |
| 6226109 | Diffractive security device on compact discs | Rene Staub | 2001-05-01 |
| 6157487 | Optically variable surface pattern | Rene Staub | 2000-12-05 |
| 6060143 | Optical information carrier | Rene Staub | 2000-05-09 |
| 5969863 | Surface pattern including light-diffracting relief structures | Rene Staub | 1999-10-19 |
| 5886798 | Information carriers with diffraction structures | Rene Staub | 1999-03-23 |
| 5882463 | Method of applying a security element to a substrate | Rene Staub | 1999-03-16 |
| 5875170 | Optical data carriers and reading devices therefor | Rene Staub | 1999-02-23 |
| 5760961 | Optical information carrier having diffractive features and diffraction modulation layers | Rene Staub | 1998-06-02 |
| 5754520 | Optical data carriers and reading devices therefor | Rene Staub | 1998-05-19 |