Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834653 | Method for producing monodisperse, amido-methylated vinyl-aromatic bead polymers | Reinhold Klipper, Olaf Halle, Michael Schelhaas | 2017-12-05 |
| 9701632 | Process for the production of phthalimides | Georg Martin, Uwe Boeger, Michael Pies, Guido Issling, Markus Koschorreck | 2017-07-11 |
| 8530530 | Non-agglomerating mixed bed ion exchangers | Stefan Hilger, Pierre Vanhoorne, Hans-Jurgen Wedemeyer | 2013-09-10 |
| 8177982 | Method of producing monodisperse chelate resins | Reinhold Klipper, Michael Schelhaas, Stefan Neumann | 2012-05-15 |
| 7462286 | Chelate exchanger | Reinhold Klipper, Bruno Hees, Olaf Halle, Wolfgang Podszun, Pierre Vanhoorne +1 more | 2008-12-09 |
| 7238762 | Weakly acidic cation exchangers | Wolfgang Podszun, Olaf Halle, Reinhold Klipper, Rudolf Wagner, Pierre Vanhoorne | 2007-07-03 |
| 7166645 | Process for the alkaline saponification of crosslinked acrylonitrile bead polymers | Michael Happ, Dieter Irmscher, Wolfgang Podszun, Rudiger Seidel | 2007-01-23 |
| 6696503 | Process for preparing crosslinked ion exchangers based on unsaturated aliphatic nitriles | Michael Happ, Ralf-Jurgen Born, Reinhold Klipper, Ulrich Schnegg, Hans-Karl Soest | 2004-02-24 |
| 6613104 | Process for preparing dyes and/or brightener formulations | Rolf Brockmann, Erwin Bacher, Detlef Szeymies | 2003-09-02 |
| 6478866 | Aqueous pigment preparations | Peter-Roger Nyssen, Achim Brand, Thomas Roick, Hans Geiger | 2002-11-12 |
| 6387189 | Surface-cleaning method | Andreas Groschl, Torsten Groth, Volker Hassmann, Jürgen Horn, Ingo Janisch +2 more | 2002-05-14 |
| 6241786 | Process for preparing dyes and/or brightener formulations | Rolf Brockmann, Erwin Bacher, Detlef Szeymies | 2001-06-05 |
| 6187195 | Inhibition and delay of deposit formation in membrane processes | Torsten Groth, Winfried Joentgen, Andreas Groschl | 2001-02-13 |
| 6031083 | Disazo dyestuffs | Klaus Kunde | 2000-02-29 |
| 5986075 | Process for the production of diazonium compounds with a low content of sodium ions | John C. DuBose, Andrew David Johnson, Samuel Shaun Murphree, Edzard Tholema, Helmut Hoffmann +2 more | 1999-11-16 |
| 5888400 | Process for preparing low-salt preparations of condensation products | Edzard Tholema, Harro Traubel | 1999-03-30 |
| 5565102 | Process for purifying organic synthesis products | Horst Brandt, Karlheinz Hildenbrand, Dietrich Tegtmeyer, Ralf Friedricsen | 1996-10-15 |