Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975438 | Optically variable surface pattern | Andreas Schilling, Wayne Robert Tompkin | 2005-12-13 |
| 6927885 | Label with a diffractive bar code and reading arrangement for such labels | Andreas Schilling, Wayne Robert Tompkin, Peter Gehr | 2005-08-09 |
| 6924934 | Diffractive safety element | Andreas Schilling, Wayne Robert Tompkin | 2005-08-02 |
| 6906861 | Light-diffracting binary grating structure | Wayne Robert Tompkin, Andreas Schilling | 2005-06-14 |
| 6871788 | Coin provided with diffraction structures | Wayne Robert Tompkin, Andreas Hasler, Jakob Jütz, Martin Muller | 2005-03-29 |
| 6870678 | Surface pattern | Wayne Robert Tompkin | 2005-03-22 |