Issued Patents All Time
Showing 1–25 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12291595 | Method for isocyanate and polyurethane production with improved sustainability | Andreas Bulan | 2025-05-06 |
| 12275689 | Method for the recycling of polyurethane material waste for producing chemical feedstock for the production of isocyanates and polyurethanes | Andreas Bulan | 2025-04-15 |
| 11905177 | Storage medium and method for separating, storing and transporting chlorine from chlorine-containing gases | Maxime PAVEN, Yuliya SCHIESSER, Gerhard Langstein, Vinh Trieu, Sebastian Hasenstab-Riedel +2 more | 2024-02-20 |
| 11530149 | Recycling of alkali sulfate rich waste water by biological pre-treatment with an extreme halophilic organism | Heike Heckroth, Christoph Herwig, Nicole MAHLER | 2022-12-20 |
| 11040878 | Method for flexibly controlling the use of hydrochloric acid from chemical production | Andreas Bulan, Johann Rechner, Juergen Hecke, Wolfgang Kern, Martin Leipnitz +1 more | 2021-06-22 |
| 10640399 | Osmotic distillation process for concentrating a liquid containing sodium chloride | Andreas Bulan, Yuliya SCHIEßER | 2020-05-05 |
| 10224552 | Gas diffusion electrode and process for production thereof | Andreas Bulan, Jürgen Kintrup | 2019-03-05 |
| 9947449 | Electromagnetic actuator, valve, and injection pump | Reinhard Fruth, Xaver Gebhardt, Bernd Woellisch, Christian Henfling, Matthias Bleeck | 2018-04-17 |
| 9903357 | Device for a high-pressure pump for a motor vehicle | Burhan Dagdelen, Andreas Muehlbauer, Stephan Bias | 2018-02-27 |
| 9562294 | Alternative installation of a gas diffusion electrode in an electrochemical cell having percolator technology | Peter Woltering, Randolf Kiefer, Andreas Bulan | 2017-02-07 |
| 9476131 | Electrochemical cell having a frame seal for alternative sealing against marginal leakages of the electrolyte | Randolf Kiefer, Peter Woltering, Andreas Bulan, Michael Grossholz | 2016-10-25 |
| 9447510 | Processes for the production of chlorine from hydrogen chloride and oxygen | Jürgen Kintrup, Andreas Bulan, Friedhelm Kamper | 2016-09-20 |
| 9347412 | Damping element for an arrangement of a cylinder head of an internal combustion engine and an injection valve | Jens Fath, Joachim Wagner, Marco Haller, Robert Kuchler | 2016-05-24 |
| 9273403 | Method for improving the performance of nickel electrodes | Andreas Bulan, Richard Malchow, Rolf Spatz, Hermann-Jens Womelsdorf | 2016-03-01 |
| 9273404 | Process for electrolysis of alkali metal chlorides with oxygen-consuming electrodes | Andreas Bulan, Jürgen Kintrup | 2016-03-01 |
| 9118082 | Oxygen-consuming electrode and process for the production thereof | Andreas Bulan, Sven Albrecht, Juliane Meese-Marktscheffel, Armin Obrich | 2015-08-25 |
| 9103458 | Method and device for controlling a valve | Michael Wirkowski | 2015-08-11 |
| 9045837 | Electrolyser with coiled inlet hose | Peter Woltering, Randolf Kiefer, Andreas Bulan | 2015-06-02 |
| 8882984 | Process for preparing diaryl carbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Michael Traving, Marc Buts +1 more | 2014-11-11 |
| 8778148 | Electrolysis cell for hydrogen chloride electrolysis | Aurel Wolf, Leslaw Mleczko, Volker Michele, Jens Assmann, Jürgen Kintrup | 2014-07-15 |
| 8547181 | Oscillator with ohmically adjustable oscillation frequency | Ingmar Kallfass | 2013-10-01 |
| 8518231 | Process for production of diaryl carbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Marc Buts, Johan Vanden Eynde | 2013-08-27 |
| 8430997 | Electrode for electrolytic production of chlorine | Ruiyong Chen, Vinh Trieu, Harald Natter, Rolf Hempelmann, Andreas Bulan +1 more | 2013-04-30 |
| 8318971 | Process for preparing methylenediphenyl diisocyanates | Fritz Pohl, Andreas Bulan, Richard Adamson, Matthias Böhm, Christian Six | 2012-11-27 |
| 8173762 | Process for the preparation of polycarbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Marc Buts, Johan Vanden Eynde | 2012-05-08 |