Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474089 | Natural air-conditioning system for a car | — | 2002-11-05 |
| 5937663 | Multipurpose heat pump system | Tsai-Chi Chen | 1999-08-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474089 | Natural air-conditioning system for a car | — | 2002-11-05 |
| 5937663 | Multipurpose heat pump system | Tsai-Chi Chen | 1999-08-17 |