Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318755 | Method and apparatus for cleaning flue gases | Yam Y. Lee, Karukkampalayam M. Sellakumar, Charles M. Davis | 1994-06-07 |
| 5310528 | Method for purification of waste gases | — | 1994-05-10 |
| 5284498 | Cylindrical filters in a tube sheet for cleaning high temperature gases | Charles M. Davis, Karukkampalayam M. Sellakumar, Folke Engstrom, Juhani Isaksson, Juha Tiensuu | 1994-02-08 |
| 5281398 | Centrifugal separator | Timo Hyppanen, Harry Ollila | 1994-01-25 |