Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5709449 | Light-emitting attachment | — | 1998-01-20 |
| 5636932 | Light-emitting ball-point pen | — | 1997-06-10 |
| 5546664 | Compass able to draw any-size ellipses | — | 1996-08-20 |
| 5520339 | Multi-stage dripping tube for irrigation | — | 1996-05-28 |
| 5508901 | Multi-colored light-emitting flower decoration | — | 1996-04-16 |
| 5430622 | Light emiting torch | — | 1995-07-04 |
| 5325273 | Lighting bar | — | 1994-06-28 |