Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10619125 | Process for making mixtures of enantiomers of MGDA and GLDA | Constanze Franzke, Marta Reinoso Garcia, Robert Baumann | 2020-04-14 |
| 9850453 | Aqueous solutions containing a complexing agent in high concentration | Markus Christian Biel, Markus Hartmann, Wolfgang Staffel, Marta Reinoso Garcia | 2017-12-26 |
| 6861548 | Continuous process for the cyanoalkylation of compounds having one or more NH functions | Gerold Braun, Friedrich Wirsing, Georg Krug | 2005-03-01 |
| 6759553 | Process for the preparation of creatine or creatine monohydrate | Knut Kessel, Günter Scherr, Michael Kluge, Norbert Biedermann, Thomas Bogenstätter +1 more | 2004-07-06 |
| 6582485 | Fuel and lubricant additives | Manfred Julius, Roland Ettl, Wolfgang H. H. Gunther | 2003-06-24 |
| 6420593 | Method for producing long-chain glycine-N,N-diacetic acid derivatives | Rainer Rahm, Alfred Oftring, Guenter Oetter, Juergen Detering, Gerold Braun | 2002-07-16 |
| 6307086 | Method for producing long-chain glycine-N,N-diacetic acid derivatives | Rainer Rahm, Alfred Oftring, Guenter Oetter, Juergen Detering, Gerold Braun | 2001-10-23 |
| 6252103 | Preparation on an O-alkylisourea | Michael Kluge, Knut Kessel, Norbert Biedermann, Günter Scherr, Thomas Bogenstätter | 2001-06-26 |
| 6165237 | Fuel and lubricant additives | Manfred Julius, Roland Ettl, Wolfgang H. H. Gunther | 2000-12-26 |
| 6147258 | Preparation of substituted guanidine derivatives | Günter Scherr, Rolf Schneider, Klaus Mundinger | 2000-11-14 |
| 6143929 | Process for preparing guanidine derivatives | Knut Kessel, Michael Kluge, Thomas Bogenstätter, Günter Scherr, Matthias Rauls +1 more | 2000-11-07 |
| 6093848 | Preparation of substituted guanidine derivatives | Günter Scherr, Rolf Schneider, Klaus Mundinger | 2000-07-25 |
| 6063286 | Modified, fine-particle, water-insoluble aziridine polymer and use therefore for removing heavy metals from aqueous solution | Ulrich Steuerle, Wolfgang Reuther, Hubert Meixner, Michael Ehle, Rainer Betz | 2000-05-16 |
| 6008176 | Use of glycine-N, N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions | Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring | 1999-12-28 |
| 6005141 | Use of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereof | Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring | 1999-12-21 |
| 5994582 | Preparation of substituted guanidine derivative | Günter Scherr, Rolf Schneider, Klaus Mundinger | 1999-11-30 |
| 5994290 | Solid textile detergent formulation comprising inorganic builders, glycine-N'N-diacetic acid derivatives as organic cobuilders and anionic and nonionic surfactants | Birgit Potthoff-Karl, Beate Ehle, Angelika Funhoff, Dieter Kiessling, Richard Baur | 1999-11-30 |
| 5969182 | Preparation of substituted guanidine derivatives | Günter Scherr, Rolf Schneider, Klaus Mundinger | 1999-10-19 |
| 5907055 | Use of triacids based on alkoxylated tertiary amines as complexing agents | Birgit Potthoff-Karl, Alfred Oftring, Thomas Fetzer, Richard Baur, Wolfgang Trieselt | 1999-05-25 |
| 5849950 | Preparation of glycine-N,N-diacetic acid derivatives | Alfred Oftring, Gerold Braun, Jochen Wild, Birgit Potthoff-Karl, Georg Schuh | 1998-12-15 |
| 5817864 | Process for the preparation of glycine-N, N-diacetic acid derivatives | Alfred Oftring, Gerold Braun, Jochen Wild, Birgit Potthoff-Karl, Georg Schuh | 1998-10-06 |
| 5786313 | Use of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereof | Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring | 1998-07-28 |
| 5783524 | Use of glycine-N,N-diacetic acid derivatives as complexing agents for alkaline earth metal and heavy metal ions in the production and transport of petroleum and natural gas | Wilhelmus Slotman | 1998-07-21 |
| 5733342 | Hydroxamic acids and hydroxamic acid ethers, and the use thereof as complexing agents | Alexander Kud, Volker Schwendemann, Michael Kneip, Elisabeth Kappes, Richard Baur +3 more | 1998-03-31 |