Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5024547 | Writing utensil with notepaper | Rosa Y. M. Tso | 1991-06-18 |
| 4860179 | Illuminated umbrella | Rosa Y. M. Tso | 1989-08-22 |
| 4848874 | Video monitor shade | Rosa Y. M. Tso | 1989-07-18 |
| 4782735 | Bulletproof protection apparatus | Rosa Y. M. Tso | 1988-11-08 |
| 4697228 | Collapsible light wand | Rosa Y. M. Tso | 1987-09-29 |