Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696284 | Biological filter for the purification of waste gases | Swachchha Majumdar | 2004-02-24 |
| 6592751 | Device for treatment of wastewater | — | 2003-07-15 |
| 6544421 | Method for purification of waste water and “RFLR” device for performing the same | Swachchha Majumdar | 2003-04-08 |
| 6527948 | Apparatus for purification of waste water and a “RFLR” device for performing the same | Swachchha Majumdar | 2003-03-04 |