Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6957907 | Illumination apparatus having a light-converting lens for increasing visual contrast between different oral tissues | Dan E. Fischer | 2005-10-25 |
| 6940659 | Cone-shaped lens having increased forward light intensity and kits incorporating such lenses | Bruce S. McLean, Dan E. Fischer | 2005-09-06 |