| 12506142 |
Process for the purification of lithium salts |
Wolfgang Rohde, Regina Vogelsang, Kerstin Schierle-Arndt, Matthias VOGES, Birgit GERKE +1 more |
2025-12-23 |
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| 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 |
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| 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 |
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| 8404734 |
Crystalline modifications of pyraclostrobin |
Hans Ziegler, Winfried Mayer, Thomas Kroehl, Karl-Heinrich Schneider, Gerhard Cox +5 more |
2013-03-26 |
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| 8318985 |
Method for producing optically active, racemic menthol |
Gunnar Heydrich, Gabriele Gralla, Joachim Schmidt-Leithoff, Klaus Ebel, Wolfgang Krause +6 more |
2012-11-27 |
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| 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 |
$85,889,000 |
| 7128784 |
Small particle-adjustment crystallization process |
Richard van Gelder, Katrin Wagner, Harald Bernard |
2006-10-31 |
$638,000 |
| 6992216 |
Crystallization of amino acids using ultrasonic agitation |
Siegfried Bechtel, Richard Gelder, Seth C. Simpson |
2006-01-31 |
$101,493,000 |
| 6627756 |
Preparation of pure triethylenediamine |
Hartmut Riechers, Arthur Hohn, Joachim Simon, Ortmund Lang, Hartmut Schoenmakers +1 more |
2003-09-30 |
$608,000 |
| 6534680 |
Dicarboxylic acid crystallizates |
Dieter Baumann, Hermann Wistuba, Bernhard Otto |
2003-03-18 |
$305,000 |
| 6444181 |
Reduction of encrustation of crystallization processes |
Udo Setzer, Bernhard Otto, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer +2 more |
2002-09-03 |
$291,000 |
| 6143929 |
Process for preparing guanidine derivatives |
Knut Kessel, Michael Kluge, Thomas Greindl, Thomas Bogenstätter, Günter Scherr +1 more |
2000-11-07 |
$207,000 |
| 6113657 |
Purification of caustic soda |
Dieter Schlafer, Michael Mauss, Dieter Baumann |
2000-09-05 |
$204,000 |
| 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 |
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