Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671994 | Flat and transparent front-lighting system using microprisms | Ping-Kaung Tai | 1997-09-30 |
| 5668913 | Light expanding system for producing a linear or planar light beam from a point-like light source | Ping-Kaung Tai | 1997-09-16 |