Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12162822 | Method for producing menthol particles stabilized against caking, and storage-stable menthol particles and use thereof | Sebastian WLOCH, Gunnar Heydrich, Gerd-Dieter Tebben | 2024-12-10 |
| 11884554 | Process for precipitating a carbonate or (oxy)hydroxide | Christian Riemann, Thorsten BEIERLING | 2024-01-30 |
| 10669222 | Process for enriching enantiomers from an enantiomer mixture | Sebastian WLOCH, Gunnar Heydrich | 2020-06-02 |
| 10294182 | Method and device for separating a substance out of a solution | Stefan Ziegler, Martin Haubner | 2019-05-21 |
| 9988331 | Method for producing optically active, racemic menthol | Gunnar Heydrich, Gabriele Gralla, Joachim Schmidt-Leithoff, Klaus Ebel, Wolfgang Krause +6 more | 2018-06-05 |
| 9802884 | Mixtures of MGDA enantiomers, and process for making such mixtures | Marta Reinoso Garcia, Markus Hartmann, Kati Schmidt, Thomas Schmidt, Paul Klingelhoefer +2 more | 2017-10-31 |
| 8404734 | Crystalline modifications of pyraclostrobin | Hans Ziegler, Winfried Mayer, Thomas Kroehl, Karl-Heinrich Schneider, Gerhard Cox +5 more | 2013-03-26 |
| 8318985 | Method for producing optically active, racemic menthol | Gunnar Heydrich, Gabriele Gralla, Joachim Schmidt-Leithoff, Klaus Ebel, Wolfgang Krause +6 more | 2012-11-27 |
| 8288593 | Menthol flakes and method for producing the same | Robert Bayer, Gunnar Heydrich, Lars Frye, Thomas Wisniewski | 2012-10-16 |
| 7868211 | Method for the production of enriched isopulegol | Christoph Jaekel, Nawid Kashani-Shirazi, Klaus Ebel | 2011-01-11 |
| 7816392 | Crystalline modifications to pyraclostrobin | Hans Ziegler, Winfried Mayer, Thomas Kröhl, Karl-Heinrich Schneider, Gerhard Cox +5 more | 2010-10-19 |
| 7754911 | Method for isolating methyl glycine nitrile-N,N-diacetonitriles from an aqueous crude mixture | Alfred Oftring, Bernd Judat, Katrin Friese | 2010-07-13 |
| 7378545 | Crystallization of amino acids using ultrasonic agitation | Siegfried Bechtel, Richard Gelder, Seth C. Simpson | 2008-05-27 |
| 7128784 | Small particle-adjustment crystallization process | Richard van Gelder, Katrin Wagner, Harald Bernard | 2006-10-31 |
| 6992216 | Crystallization of amino acids using ultrasonic agitation | Siegfried Bechtel, Richard Gelder, Seth C. Simpson | 2006-01-31 |
| 6627756 | Preparation of pure triethylenediamine | Hartmut Riechers, Arthur Hohn, Joachim Simon, Ortmund Lang, Hartmut Schoenmakers +1 more | 2003-09-30 |
| 6534680 | Dicarboxylic acid crystallizates | Dieter Baumann, Hermann Wistuba, Bernhard Otto | 2003-03-18 |
| 6444181 | Reduction of encrustation of crystallization processes | Udo Setzer, Bernhard Otto, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer +2 more | 2002-09-03 |
| 6143929 | Process for preparing guanidine derivatives | Knut Kessel, Michael Kluge, Thomas Greindl, Thomas Bogenstätter, Günter Scherr +1 more | 2000-11-07 |
| 6113657 | Purification of caustic soda | Dieter Schlafer, Michael Mauss, Dieter Baumann | 2000-09-05 |
| 5981798 | Preparation of a crystalline solid from glycine-N,N-diacetic acid derivatives with sufficiently low hygroscopicity | Michael Schönherr, Hermann Ascherl, Thomas Letzelter, Dieter Baumann, Birgit Potthoff-Karl | 1999-11-09 |