Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355230 | Residual current monitoring for a DC voltage switching device | Tobias Grote | 2025-07-08 |
| 12143045 | Technique for disconnecting the actuation of a power stage | Alexander Guenter, Dirk Plewka | 2024-11-12 |
| 12081012 | DC voltage switching device having earth fault protection | Tobias Grote, Detlev Schuergens | 2024-09-03 |
| 10298218 | Method and device for controlling an electrical or electronic switching element | Stephan Hansmeier, Bernd Schulz, Dirk Plewka | 2019-05-21 |
| 9464164 | Method for the preparation of polyesters | — | 2016-10-11 |
| 9447782 | Compressor and method for compressing technical gases | — | 2016-09-20 |
| 9300126 | Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system | Elmar Schaper, Rainer Durth, Bernd Schulz | 2016-03-29 |
| 9024079 | Separation of isomeric menthol compounds | Reinhold Brink, Sven Kuhlmann, Martin Mechelhoff, Oliver Pfohl | 2015-05-05 |
| 8993813 | Method for producing parathymol | Uwe Boeger, Michael Herzhoff | 2015-03-31 |
| 8531179 | Method and device for the detection of current asymmetries in three-phase circuits | Daniel Hawel, Andre Korrek, Elmar Schaper, Stephan Hansmeier, Bernd Schulz | 2013-09-10 |
| 8519193 | Dialkyl phenols | — | 2013-08-27 |
| 7468158 | Corrosion inhibitor for protecting metallic materials in strongly alkaline medium | Stylianos Savakis, Helmut Diekmann, Eberhard Zirngiebl | 2008-12-23 |
| 7307070 | Microbicidal compositions | Peter Wachtler, Michael Schwamborn, Martin Kugler, Hans-Ulrich Buschhaus | 2007-12-11 |
| 7019174 | Preparation of colourless dibenzylamine | — | 2006-03-28 |
| 6025499 | Process for the preparation of a nitropyrazole amide | Nikolaus Muller, Guido Steffan | 2000-02-15 |
| 5977052 | Washing process using polycarboxylic acid salts | Winfried Joentgen, Torsten Groth, Paul Wagner, Klaus-Peter Heise | 1999-11-02 |
| 5977378 | Process for the preparation of 1-alkyl-pyrazole-5-carboxylic acid esters | Nikolaus Muller, Johannes Kanellakopoulos, Andreas Sattler, Klaus-Peter Heise | 1999-11-02 |
| 5972971 | Fungicidal active compound combinations | Martin Kugler, Hans-Ulrich Buschhaus, Heinrich Schrage, Franz Kunisch | 1999-10-26 |
| 5969152 | Process for the preparation of nitropyrazole esters | Nikolaus Muller, Guido Steffan | 1999-10-19 |
| 5942150 | Use as antifreeze of polymers with recurring succinyl units | Winfried Joentgen, Torsten Groth, Ralf-Johann Moritz | 1999-08-24 |
| 5874025 | Timber preservative containing a copper compound | Winfried Joentgen, Torsten Groth | 1999-02-23 |
| 5779776 | Rooting inhibitors | Heinz-Joachim Rother | 1998-07-14 |
| 5726280 | Sulfonic acid group-containing polyaspartic acid derivatives, use thereof and prepartion thereof | Hermann Uhr, Torsten Groth, Winfried Joentgen, Roland Kleinstuck | 1998-03-10 |
| 5703103 | Thiazolylpyrazolinones and their use for protecting technical materials | Peter Wachtler, Martin Kugler, Heinrich Schrage, Klaus Sasse | 1997-12-30 |
| 5679761 | Iminodisuccinate-containing polymers | Winfried Joentgen, Torsten Groth, Hans-Joachim Traenckner, Nikolaus Muller, Hermann Uhr +8 more | 1997-10-21 |