Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6710941 | Fresnel lens for projection screens | Daniel W. Hennen, Robert S. Moshrefzadeh, Scott M. Tapio, Patrick Thomas | 2004-03-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6710941 | Fresnel lens for projection screens | Daniel W. Hennen, Robert S. Moshrefzadeh, Scott M. Tapio, Patrick Thomas | 2004-03-23 |