Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670244 | Process for reducing metal ions in aqueous solutions | Wouter Roos, Bernardus J. Damman, Arie Lagendijk, Dieter Steidl | 1987-06-02 |
| 4632812 | Process for making alkali metal phosphate solutions containing little vanadium | Johannes-Wilhelmus Kinneging, Wouter Roos, Bernardus J. Damman, Andries Jelsma | 1986-12-30 |
| 4294808 | Production of anticorrosive pigments containing phosphorus | Horst-Dieter Wasel-Nielen, Renate Adrian, Herbert Panter, Gero Heymer, Alexander Maurer | 1981-10-13 |