Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8033690 | Light assembly for flashlights | John C. Bortz | 2011-10-11 |
| 8007156 | Light assembly for flashlights | John C. Bortz | 2011-08-30 |
| 6331061 | Irradiance redistribution guide | John C. Bortz | 2001-12-18 |
| 6097556 | Irradiance redistribution guide | John C. Bortz | 2000-08-01 |
| 6010224 | Energy efficient headlamp | — | 2000-01-04 |
| 5870235 | Energy-efficient headlamp | — | 1999-02-09 |
| 5237170 | Method and apparatus for non-imaging concentration and projection of electromagnetic radiation | — | 1993-08-17 |