Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11224843 | Crosslinked unreinforced cellulose hydrate membrane, method for the production thereof, and use thereof | Sandra Van Der Kruijs, Annette Reiche, Gabriel Nino-Amézquita, Louis Villain, Dieter Melzner +1 more | 2022-01-18 |
| 10253299 | Sulfated cellulose hydrate membrane, method for producing same, and use of the membrane as an adsorption membrane for a virus purification process | Louis Villain, Christian Brumm | 2019-04-09 |
| 9433904 | Cellulose hydrate membrane, method for the production thereof, and use thereof | Wolfgang Demmer, Rene Faber, Csilla Kiss, Dietmar Nuβbaumer | 2016-09-06 |
| 8343350 | Membrane, device and method for removing proteases from liquids | Wolfgang Demmer, Dietmar Nussbaumer | 2013-01-01 |
| 8343351 | Membrane for removing proteases from liquids | Wolfgang Demmer, Dietmar Nussbaumer | 2013-01-01 |
| 7422686 | Cellulose hydrate ultrafiltration membranes and method for their production | Dietmar Nussbaumer | 2008-09-09 |
| 6294090 | Adsorptive substance separation device | Dietmar Nussbaumer, Khoung To Vinh, Abdul Weiss, Wolfgang Demmer, Andreas Graus +1 more | 2001-09-25 |
| 6017454 | Centrifugal filtration onto membrane adsorbers | Wolfgang Demmer, Dietmar Nussbaumer | 2000-01-25 |
| 5739316 | Cross-linked cellulose hydrate membranes | Hans Beer, Wolfgang Demmer, Dieter Melzner, Dietmar Nussbaumer, Hans-Weddo Schmidt +1 more | 1998-04-14 |
| 5618418 | Dead-end membrane adsorbers | Wolfgang Demmer, Dietmar Nussbaumer, Abdul Weiss | 1997-04-08 |
| 5556708 | Process for grafting of nitrogen containing polymers and polymers obtained thereby | Dietmar Nussbaumer, Eberhard Wunn | 1996-09-17 |
| 5547575 | Method for the surface modification of formed bodies and formed bodies produced thereby | Wolfgang Demmer, Dietmar Nussbaumer, Abdul Weiss, Eberhard Wunn | 1996-08-20 |
| 5215692 | Process for the surface grafting of formed bodies, in particulate also microporous membranes made from nitrogen-containing polymers | Dietmar Nussbaumer, Eberhard Wunn | 1993-06-01 |