Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9637574 | Process and apparatus for preparing alkyl esters of methacrylic acid | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2017-05-02 |
| 9458083 | Method for hydrolysing acetone cyanohydrin | Arndt Selbach, Lorenza Sartorelli, Andreas Perl, Joachim Deinken, Stefanie Sohnemann +3 more | 2016-10-04 |
| 9169194 | Metering ring | Lorenza Sartorelli, Andreas Perl, Arndt Selbach, Stefanie Sohnemann, Matthias Groemping +2 more | 2015-10-27 |
| 8889899 | Transesterification methods | Jochen Ackermann, Alexander May, Hermann Siegert, Bernd Vogel, Soenke Broecker | 2014-11-18 |
| 8802020 | Reactor for preparing hydrogen cyanide by the Andrussow process | Thomas Schaefer, Robert Weber, Thomas Mertz | 2014-08-12 |
| 8586779 | Method for producing methacrylic alkyl esters by way of azeotropic distillation | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2013-11-19 |
| 8575388 | Method for producing methacrylic acid | Stefanie Sohnemann, Guido Protzmann, Thomas Mertz | 2013-11-05 |
| 8389762 | Method for purifying methacrylic acid | Stefanie Sohnemann, Guido Protzmann, Thomas Mertz | 2013-03-05 |
| 8334399 | Method for producing acetone cyanohydrin and the subsequent products thereof by specific cooling | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2012-12-18 |
| 8324424 | Method for the adsorptive purification of alkyl methacrylates | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2012-12-04 |
| 8143434 | Production by distillation of acetone cyanhydrin and method for producing methacrylic ester and subsequent products | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2012-03-27 |
| 8129559 | Process for preparing cyanohydrins and their use in the preparation of alkyl esters of methacrylic acid | Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz | 2012-03-06 |
| 7999130 | Methods for producing alkyl(meth)acrylates | Jochen Ackermann, Alexander May, Hermann Siegert, Bernd Vogel, Soenke Broecker | 2011-08-16 |
| 7423173 | Method for producing alpha-hydroxycarboxylic acids and the esters thereof | Steffen Krill, Friedel Schultheis, Matthias Groemping | 2008-09-09 |
| 6977310 | Method for the continuous production of alkyl (meth)acrylates | Jochen Ackermann, Horst Hiltner, Hans-Rolf Rausch, Ingrid Lunt-Rieg, Hermann Siegert +1 more | 2005-12-20 |
| 6469203 | Method for depolymerizing polymethylmethacrylate | Hans-Jurgen Weiss, Jorg Schmalfeld, Udo Zentner, Tobias Groschang, Werner Fuss +2 more | 2002-10-22 |
| 5541284 | Method for processing crude polyoxymethylene | Detlef Arnoldi, Edwin Nun | 1996-07-30 |