Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D434174 | Table lamp | — | 2000-11-21 |
| D433531 | Floor lamp | — | 2000-11-07 |
| 6016873 | Hydrologic cells for the exploitation of hydrocarbons from carbonaceous formations | Kenneth J. Hsu | 2000-01-25 |
| 5857364 | Two-way lock mechanism with cam action | TB Tsai, William Chang | 1999-01-12 |
| 5844970 | Multi-user personal message transmitting and receiving system | — | 1998-12-01 |
| 5761282 | Multi-user personal message transmitting and receiving system | — | 1998-06-02 |
| 5645322 | In-situ chemical reactor for recovery of metals and salts | Kenneth J. Hsu, Frank W. Dickson | 1997-07-08 |
| 5248556 | Systhetic whitener pigment | Egon Matijevic, Manfred R. Kuehnle | 1993-09-28 |
| 4910897 | Rotary display music box | — | 1990-03-27 |