Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6096239 | Method for removal of sulfur dioxide | Raghu Narayan, Chien Kuei Tsai | 2000-08-01 |
| 5785888 | Method for removal of sulfur dioxide | Chien Kuei Tsai, Raghu Narayan | 1998-07-28 |