Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11020712 | Polyelectrolyte multilayer (PEM) membranes and their use | Joris De Grooth, Maria Gerridina Elshof | 2021-06-01 |
| 10960358 | Method for the production of positively charged membranes | Joris De Grooth | 2021-03-30 |
| 6203699 | Filtration membrane module | Ingo Blume, Petrus Cornelis Kamp | 2001-03-20 |
| 5560828 | Method for the removal of components causing turbidity, from a fluid, by means of microfiltration | Gede Wenten, Dirk M. Koenhen, Alan Rasmussen, Gunnar Jonsson | 1996-10-01 |
| RE34296 | Process for the preparation of hydrophilic membranes and such membranes | Cornelis A. Smolders, Marcellinus H. V. Mulder, Dirk M. Koenhen | 1993-06-29 |
| 5169575 | Method for producing a flat porous product | Dirk M. Koenhen | 1992-12-08 |
| 5076925 | Process for preparing a microporous membrane and such a membrane | Dirk M. Koenhen, Marcellinus H. V. Mulder, Cornelis A. Smolders | 1991-12-31 |
| 4798847 | Process for the preparation of hydrophilic membranes and such membranes | Cornelis A. Smolders, Marcellinus H. V. Mulder, Dirk M. Koenhen | 1989-01-17 |