Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883919 | Diffusion furnace system for preventing gas leakage | Cheng-Chang Hung | 1999-03-16 |
| 5769628 | Furnace exhaust system with regulator | — | 1998-06-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883919 | Diffusion furnace system for preventing gas leakage | Cheng-Chang Hung | 1999-03-16 |
| 5769628 | Furnace exhaust system with regulator | — | 1998-06-23 |