Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674464 | Desulphurization of waste gases | Daniel Van Velzen, Dimosthenis Papameletiou | 1997-10-07 |
| 5489421 | Process for preparing hydroxylamine from NO.sub.x -containing flue gases | Daniel Van Velzen, Dimosthenis Papameletiou, Havard Nymoen | 1996-02-06 |
| 5433828 | Method for the removal of hydrogen sulfide and/or carbon disulfide from waste gases | Daniel Van Velzen | 1995-07-18 |
| 5354436 | Process for removing nitrogen compounds from a liquid | Daniel Van Velzen, Ariel Moryoussef | 1994-10-11 |
| 4668490 | Process and a device for flue gas desulphurization | Daniel Van Velzen | 1987-05-26 |