Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7754900 | Method for the production of dioxolane | Markus Siegert, Neven Lang, Eckhard Stroefer | 2010-07-13 |
| 7713387 | Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification | Markus Siegert, Neven Lang, Eckhard Ströfer, Thorsten Friese, Hans Hasse | 2010-05-11 |
| 7598339 | Method for removing residual monomers from polyoxymethylenes | Claudius Schwittay, Elmar Stockelmann, Johannes Heinemann, Knut Zollner | 2009-10-06 |
| 7431804 | Method for carrying out the distillation or reactive distillation of a mixture containing at least one toxic constituent | Eckhard Ströfer, Gerd Kaibel, Carsten Oost, Martin Sohn, Manfred Stroezel +1 more | 2008-10-07 |
| 6809224 | Method for the separation of formaldehyde from a reaction mixture containing polyols by the addition of solvents before and/or during the distillation | Matthias Dernbach, Detlef Kratz, Gerhard Schulz | 2004-10-26 |
| 6692616 | Method for purifying trimethylolpropane, which is produced by hydrogenation, by means of continuous distillation | Matthias Dernbach, Detlef Kratz, Harald Rust, Gerhard Schulz | 2004-02-17 |
| 6676919 | Method for producing platinum metal catalysts | Martin Fischer, Markus Hölzle, Stefan Quaiser | 2004-01-13 |
| 6592840 | Highly pure aqueous hydrogen peroxide solutions, method for producing same and their use | Martin Fischer, Stefan Quaiser | 2003-07-15 |
| 6586642 | Color number improvement in polyhydric alcohols by hydrogenation | Matthias Dernbach, Detlef Kratz, Mathias Haake, Michael Koch, Gerhard Schulz | 2003-07-01 |
| 6586641 | Method for the decomposition of high boiling by-products produced in the synthesis of polyhydric alcohols | Matthias Dernbach, Detlef Kratz, Gerhard Schulz | 2003-07-01 |
| 6518441 | Method for oxidizing an organic compound containing at least one C-C double bond | Georg Heinrich Grosch, Ulrich Müller, Andreas Walch, Norbert Rieber, Martin Fischer +11 more | 2003-02-11 |
| 6511053 | Packing for heat-exchange and mass-transfer columns | Gerd Kaibel, Manfred Stroezel | 2003-01-28 |
| 6427985 | Structured packing for heat exchange and mass transfer | Gerd Kaibel, Manfred Stroezel | 2002-08-06 |
| 6375920 | Process for the manufacture of hydrogen peroxide | Martin Fischer, Gerd Kaibel, Klemens Flick, Stefan Quaiser, Wolfgang Harder +1 more | 2002-04-23 |
| 6187971 | Method for producing polyalcohols | Detlef Kratz, Gerhard Schulz, Guido Voit | 2001-02-13 |
| 6018074 | Process for the preparation of polyalcohols | Detlef Kratz, Tom Witzel, Martin Brudermuller | 2000-01-25 |