Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253308 | Method for catalytic phase oxidation to (meth) acrolein and/or (meth) acrylic acid | Claus Hechler, Gerhard Olbert, Uwe Stabel, Peter Zehner | 2007-08-07 |
| 7253316 | Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride | Jörg Pastre, Kai Michael Exner, Wolfram Stuer, Elke Geissler | 2007-08-07 |
| 7238827 | Preparation of at least one partial oxidation and/or ammoxidation product of propylene | Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Klaus Joachim Müller-Engel +1 more | 2007-07-03 |
| 7173143 | Integrated method for synthesis propylene oxide | Michael Bender, Peter Zehner, Ulrich Mueller, Klaus Harth, Goetz-Peter Schindler +1 more | 2007-02-06 |
| 7109374 | Method for the continuous extraction of (meth)acrylic acid | Christoph Adami, Claus Hechler, Juergen Schroeder, Volker Schliephake, Joachim Thiel +1 more | 2006-09-19 |
| 7087802 | Method for the dehydrogenation of hydrocarbons | Goetz-Peter Schindler, Klaus Harth, Klaus Joachim Müller-Engel, Peter Zehner | 2006-08-08 |
| 7038098 | Method for dehydrogenating C2-C30-alkanes | Christian Walsdorff, Gotz-Peter Schindler, Klaus Harth | 2006-05-02 |
| 6781017 | Method for the production of acrolein or acrylic acid or the mixture thereof from propane | Goetz-Peter Schindler, Andreas Tenten, Klaus Harth, Peter Zehner, Klaus Joachim Müller-Engel +2 more | 2004-08-24 |
| 6740779 | Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid | Andreas Tenten, Hartmut Hibst, Claus Hechler, Klaus Joachim Müller-Engel, Signe Unverricht | 2004-05-25 |
| 6727383 | Method for producing acrylic acid and acrylic acid esters | Gerhard Nestler, Jürgen Schröder | 2004-04-27 |
| 6646161 | Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents | Bernd Eck, Theo Proll, Volker Schliephake, Joachim Thiel, Klaus Bröllos | 2003-11-11 |
| 6624315 | Method of gas phase catalytic oxidation to give maleic acid anhydride | Peter Zehner, Claus Hechler, Alexander Weck, Gerhard Olbert, Uwe Stabel | 2003-09-23 |
| 6596901 | Method for purifying acrylic acid and methacrylic acid | Bernd Eck, Theo Proll, Volker Schliephake, Klaus Joachim Müller-Engel | 2003-07-22 |
| 6448439 | Method for producing acrylic acid and methacrylic acid | Bernd Eck, Theo Proll, Volker Schliephake, Joachim Thiel, Klaus Bröllos | 2002-09-10 |
| 6433222 | Method for producing acrylic acid | Bernd Eck, Jorg Heilek, Volker Schliephake, Theo Proll, Klaus Bröllos +1 more | 2002-08-13 |
| 6426433 | Method for producing acrolein and/or acrylic acid from propane | Andreas Tenten, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-07-30 |
| 6423875 | Method for producing acrolein and/or acrylic acid from propane | Andreas Tenten, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-07-23 |
| 6413379 | Continuous recovery of (meth)acrylic acid | Susanne Haupt, Volker Schliephake, Jürgen Schröder | 2002-07-02 |
| 6410785 | Method for producing acrolein by heterogeneous catalytic gas-phase partial oxidation of propene | Peter Zehner, Heiko Arnold, Klaus Joachim Müller-Engel | 2002-06-25 |
| 6388129 | Method for producing acrolein and/or acrylic acid from propane | Andreas Tenten, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-05-14 |
| 6350906 | Continuous recovery of (meth)acrylic acid | Peter Zehner, Filip Deberdt | 2002-02-26 |
| 6090977 | Continuous heterogeneously catalyzed gas-phase partial oxidation of an organic compound | Werner Hefner, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel, Herbert Vogel | 2000-07-18 |
| 5831124 | Purification of acrylic acid and methacrylic acid | Albrecht Dams, Bernd Eck, Theo Proll | 1998-11-03 |
| 5817865 | Preparation of acrylic acid and esters | Toni Dockner, Gerd-Jurgen Engert, Theo Proll | 1998-10-06 |
| 5705684 | Preparation of acrolein, acrylic acid or a mixture thereof from propane | Werner Hefner, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel, Herbert Vogel | 1998-01-06 |