Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7183429 | Preparation and use of iminodisuccinic acid ammonium metal salts | Alfred Mitschker, Ralf-Johann Moritz, Thomas Klein, Thomas Menzel, Wolfgang Wirth | 2007-02-27 |
| 6743372 | Media for water treatment | Roland Kleinstuck, Winfried Joentgen | 2004-06-01 |
| 6387189 | Surface-cleaning method | Andreas Groschl, Volker Hassmann, Jürgen Horn, Ingo Janisch, Winfried Joentgen +2 more | 2002-05-14 |
| 6207010 | Preparation and use of iminodisuccinic acid salts | Winfried Joentgen, Paul Wagner, Frank Dobert, Eckhard Wenderoth, Thomas Roick | 2001-03-27 |
| 6187195 | Inhibition and delay of deposit formation in membrane processes | Wolfgang Zarges, Winfried Joentgen, Andreas Groschl | 2001-02-13 |
| 6187898 | Method for carrying out polycondensation reactions | Paul Wagner, Frank Dobert, Thomas Menzel, Winfried Joentgen, Ulrich Liesenfelder +2 more | 2001-02-13 |
| 6180752 | Polyasparaginic acid homopolymers an copolymers, biotechnical production and use thereof | Winfried Joentgen, Alexander Steinbuchel, Tran T. Hai, Fred Bernd Oppermann | 2001-01-30 |
| 6107518 | Preparation and use of iminodisuccinic acid salts | Winfried Joentgen, Paul Wagner, Frank Dobert, Eckhard Wenderoth, Thomas Roick | 2000-08-22 |
| 6100319 | Process for improving the plasticity of ceramic composition and for reversing this effect | Winfried Joentgen, Bernhard Lehmann, Ralf-Johann Moritz, Ulrich Litzinger, Rudiger Schubart +1 more | 2000-08-08 |
| 6096097 | Simultaneous washing and bleaching of native fibres and textile products therefrom | Ferdinand Kummeler, Josef Pfeiffer, Michael Pirkotsch, Winfried Joentgen | 2000-08-01 |
| 6056787 | Process for the pretreatment of fibers | Gerd-Friedrich Renner, Michael Pirkotsch, Klaus Walz, Winfried Joentgen | 2000-05-02 |
| 6054553 | Process for the preparation of polymers having recurring agents | Winfried Joentgen, Frank Dobert, Klaus-Peter Heise, Thomas Menzel, Ursula Pentling +3 more | 2000-04-25 |
| 5977053 | Detergents and cleaners containing iminodisuccinates | Winfried Joentgen, Hans-Joachim Traenckner | 1999-11-02 |
| 5977052 | Washing process using polycarboxylic acid salts | Lutz Heuer, Winfried Joentgen, Paul Wagner, Klaus-Peter Heise | 1999-11-02 |
| 5942150 | Use as antifreeze of polymers with recurring succinyl units | Lutz Heuer, Winfried Joentgen, Ralf-Johann Moritz | 1999-08-24 |
| 5902357 | Composition for dyeing or printing textile materials | Martin Riegels, Uwe Vogt, Klaus Walz, Fritz Lesszinsky, Bernd Konemund +1 more | 1999-05-11 |
| 5885474 | Use of polyaspartic acid amides as leather auxiliary products | Jurgen Reiners, Manfred Schnee, Winfried Joentgen, Gerd Schmitz, Harro Traubel +1 more | 1999-03-23 |
| 5874025 | Timber preservative containing a copper compound | Lutz Heuer, Winfried Joentgen | 1999-02-23 |
| 5804639 | Pigment preparations having a high solids content | Gert Schopwinkel, Kai Butje, Gunter Wieghaus, Richard Bathke, Winfried Joentgen | 1998-09-08 |
| 5795707 | Photographic silver halide material | Klaus Wagner, Gunter Helling, Winfried Joentgen | 1998-08-18 |
| 5773630 | Process for the preparation of N-substituted cyclic imides | Karl-Erwin Piejko, Winfried Joentgen, Josef Kasbauer, Bernd Alig, Werner Struver | 1998-06-30 |
| 5739393 | Process for the preparation of polymers with recurring succinyl units | Paul Wagner, Frank Dobert, Winfried Joentgen | 1998-04-14 |
| 5726265 | Thermoplastics having a high heat deflection temperature and improved heat stability | Karl-Erwin Piejko, Herbert Eichenauer, Josef Kasbauer, Bernd-Michael Konig | 1998-03-10 |
| 5726280 | Sulfonic acid group-containing polyaspartic acid derivatives, use thereof and prepartion thereof | Hermann Uhr, Lutz Heuer, Winfried Joentgen, Roland Kleinstuck | 1998-03-10 |
| 5714558 | Process for preparing polyaspartic acid | Winfried Joentgen, Nikolaus Muller | 1998-02-03 |