Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9289752 | Catalyst for reacting carboxylic acid nitriles | Alexander May, Bernd Vogel, Kurt-Alfred Gaudschun, Thomas Quandt | 2016-03-22 |
| 9234218 | Process for preparing methacrylic acid or methacrylic esters | Achim Marx, Markus Poetter, Stefan Buchholz, Alexander May, Birgit Alber +2 more | 2016-01-12 |
| 8975440 | Method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid | Alexander May, Martin Koestner, Joerg Becker, Joerg Schallenberg, Bernd Vogel | 2015-03-10 |
| 8889899 | Transesterification methods | Jochen Ackermann, Alexander May, Udo Gropp, Bernd Vogel, Soenke Broecker | 2014-11-18 |
| 8791296 | Process for preparing methacrylic acid | Dirk Broell, Horst Hiltner, Thomas Krauss | 2014-07-29 |
| 8569539 | Process for preparing alpha-hydroxycarboxylic esters | Alexander May, Bernd Vogel, Jochen Ackermann, Soenke Broecker | 2013-10-29 |
| 8461375 | Method for the continuous production of alkyl(meth)acrylates with multiple catalyst recycling | Jochen Ackerman, Horst Hiltner | 2013-06-11 |
| 8337671 | Method for purifying polymerizable compounds | Dirk Broell | 2012-12-25 |
| 8334406 | Process for preparing carboxamides by hydrolysis carboxylic acid nitriles in the presence of a catalyst comprising manganese dioxide | Alexander May, Jochen Ackermann, Bernd Vogel, Soenke Broecker | 2012-12-18 |
| 8207371 | Process for preparing (meth)acrylic acid | Bernd Vogel, Alexander May | 2012-06-26 |
| 8084640 | Method for the continuous production of unsaturated carboxylic acid anhydrides | Dirk Broell | 2011-12-27 |
| 7999130 | Methods for producing alkyl(meth)acrylates | Jochen Ackermann, Alexander May, Udo Gropp, Bernd Vogel, Soenke Broecker | 2011-08-16 |
| 7928251 | Process for preparing tetramethyl glycolide | Bernd Vogel, Alexander May | 2011-04-19 |
| 7714165 | Method for the continuous production of unsaturated carboxylic acid anhydrides | Dirk Broell | 2010-05-11 |
| 6979432 | Hydrogen cyanide synthesis process | Thomas Schaefer | 2005-12-27 |
| 6977310 | Method for the continuous production of alkyl (meth)acrylates | Jochen Ackermann, Udo Gropp, Horst Hiltner, Hans-Rolf Rausch, Ingrid Lunt-Rieg +1 more | 2005-12-20 |
| 6743407 | Hydrogen cyanide synthesis process | Thomas Schaefer | 2004-06-01 |
| 5380932 | Process for producing methacrylic acid and methacrolein by oxidation of isobutane with molybdenum heteropoly acid catalyst | Ernst Bielmeier, Thomas Haeberle, Wilhelm Gruber | 1995-01-10 |
| 5218145 | Method for making isobutyric acid | Wolfgang Ruppert | 1993-06-08 |
| 4992582 | Method for making isobutyric acid | Wolfgang Ruppert | 1991-02-12 |
| 4791227 | Method for handling reaction mixtures containing hydrogen fluoride | Alfred Neumann, Willi Ploesser | 1988-12-13 |
| 4673730 | Method for recovering aromatic polyethers | Werner Ude | 1987-06-16 |
| 4647696 | Method for making isobutyric acid | Siegmund Besecke, Guenter Schroeder, Wolfgang Gaenzler | 1987-03-03 |
| 4504675 | Method for making isobutyric acid or esters thereof | Siegmund Besecke, Gunter Schroder | 1985-03-12 |
| 4452999 | Method for making isobutyric acid | Siegmund Besecke, Guenter Schroeder, Wolfgang Gaenzler | 1984-06-05 |