Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11046950 | Magnetic particles with a closed ultrathin silica layer, method for the production thereof and their use | Guido Hennig | 2021-06-29 |
| 10385331 | Magnetic particles with a closed ultrathin silica layer, method for the production thereof and their use | Guido Hennig | 2019-08-20 |
| 9617534 | Magnetic particles with a closed ultrathin silica layer, method for the production thereof and their use | Guido Hennig | 2017-04-11 |
| 8709571 | Disc shaped high density recording medium | Friedrich-Karl Bruder, Wilfried Haese, Rafael Oser, Rainer Protte, Alexander Meyer +2 more | 2014-04-29 |
| 8658213 | Hydrophilic nanoparticles with functional surface groups, production and use thereof | Werner Hoheisel | 2014-02-25 |
| 8323899 | Silica magnetic particles with a high nucleic acid binding capacity | David H. Sherman | 2012-12-04 |
| 8101673 | Silica-containing UV-crosslinkable hardcoat coatings comprising urethane acrylates | Peter Capellen, Eberhard Koch | 2012-01-24 |
| 7993721 | Disc-shaped high-density recording mediums | Friedrich-Karl Bruder, Wilfried Haese, Rafael Oser, Jan Wiekard, Wolfgang Fischer +2 more | 2011-08-09 |
| 7713474 | Liquid permeable composition in dry reagent devices | Lloyd Schulman, Michael J. Pugia, Spencer Lin | 2010-05-11 |
| 6126900 | Graphite nonwovens as functional layers in diagnostic test kits | — | 2000-10-03 |
| 5916156 | Electrochemical sensors having improved selectivity and enhanced sensitivity | Hans-Ulrich Siegmund | 1999-06-29 |
| 5565102 | Process for purifying organic synthesis products | Horst Brandt, Dietrich Tegtmeyer, Ralf Friedricsen, Wolfgang Zarges | 1996-10-15 |
| 5420047 | Method for carrying out immunodiagnostic tests | Heinz-Dieter Brandt, Rolf Dhein, Ronald Helmut Stocker | 1995-05-30 |
| 5403463 | Electrochemical sensor | Christoph Braden, Jacques Deprez, Holger Ohst, Dirk Pfenning | 1995-04-04 |
| 5238737 | Use of polymer blend films as supports for diagnostic test strips | Claus Burkhardt, Thomas Doege, Werner Kroll, Alexander Riebel, Bernhard Schulte +2 more | 1993-08-24 |
| 5238570 | Asymmetric semipermeable membranes of aromatic polycondensates, processes for their preparation and their use | Herbert Hugl, Rolf Dhein, Ralf Dujardin, Knud Reuter | 1993-08-24 |
| 5160436 | Asymmetric sandwich membrane system having reduced ascorbate interference | Herbert Hugl, Rolf Dhein | 1992-11-03 |
| 5124128 | Process for the production of porous membranes, the membranes produced thereby and their use as supporting matrices in test strips | Dittmar Nerger, Klaus Wehling | 1992-06-23 |
| 4968430 | Composite membranes, processes for their preparation and their use | Rolf Dhein, Willi Meister, Dittmar Nerger | 1990-11-06 |
| 4837043 | Process for the production of test strips by casting method | Helmut Engelmann, Gunter Junkers | 1989-06-06 |
| 4824639 | Test device and a method for the detection of a component of a liquid sample | Hans-Hagen von Dohren, Hermann Perrey, Georg Frank, Rolf Dhein | 1989-04-25 |
| 4824640 | Transparent test strip system | Hans-Hagen von Dohren, Hermann Perrey, Klaus Wehling | 1989-04-25 |
| 4804475 | Metallized membrane systems | Kirkor Sirinyan, Ulrich von Gizycki, Rudolf Merten, Hermann Perrey, Gerhard D. Wolf | 1989-02-14 |