Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7238424 | All-dielectric optically variable pigments | Vladimir P. Raksha, Paul T. Kohlmann, Richard A. Bradley, Jr., Alberto Argoitia, Roger W. Phillips | 2007-07-03 |
| 6074730 | Broad-band antireflection coating having four sputtered layers | Ronald E. Laird | 2000-06-13 |
| 5699164 | Telecentric reflection head for optical monitor | John Lehan | 1997-12-16 |
| 4390787 | Method and apparatus for automatic egg mass counting | Daniel T. Jennings, David Bruce Young | 1983-06-28 |
| 4309075 | Multilayer mirror with maximum reflectance | Joseph H. Apfel | 1982-01-05 |