Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456294 | Nonspill bottled water replacement system with a shielded disposable cap | Chein-Hwa Tsao, Robert N. Lee, Boris Shteynberg | 1995-10-10 |
| 4890874 | Liner for a pickup truck bed | — | 1990-01-02 |