Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6563638 | Wide-angle collimating optical device | Chungte W. Chen, Ronald G. Hegg, John Gunther | 2003-05-13 |
| 6563654 | External pupil lens system | Chungte W. Chen, Ronald G. Hegg | 2003-05-13 |