Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336958 | Method for purifying gas loaded with dust | Jacob Hendrik Obbo Hazewinkel, Abraham Barend Van Der Giesen | 2002-01-08 |
| 6159268 | Process for pyrometallurgical processing in a furnace chamber, of metal-containing waste | Klaus Jungk | 2000-12-12 |
| 6084139 | Method for processing waste or biomass material | Abraham Barend Van Der Giessen, Jacob Hendrik Obbo Hazewinkel, Klaus Jungk, Ruurd Andries Van Der Veen | 2000-07-04 |
| 4351807 | Process for selective extraction of metal ions from aqueous solutions and extracting agents suitable for that purpose | Martinus Tels, Hendrikus P. M. Kivits | 1982-09-28 |
| 4191728 | Process for selective extraction of metal ions from aqueous solutions and extracting agents suitable for that purpose | Martinus Tels, Hendrikus P. M. Kivits | 1980-03-04 |