Issued Patents All Time
Showing 1–25 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10836658 | Liquid preparation for the reduction of free oxygen and the preservation of water | Ralf Gradtke, Jennifer Knopf, Michael Streek | 2020-11-17 |
| 10640714 | Use of compositions having a content of 3,3′-methylenebis(5-methyloxazolidine) in the removal of sulphur compounds from process streams | Ralf Gradtke, Stefanie Krause, Jennifer Knopf, Michael Streek, Joachim Thiede +1 more | 2020-05-05 |
| 10584283 | Preservative for technical products | Ralf Gradtke, Jennifer Knopf | 2020-03-10 |
| 10519144 | Condensation product of 1-amino-2-propanol and formaldehyde and the use thereof for reducing the amount of hydrogen sulphide in liquids and gases | Ralf Gradtke, Jennifer Knopf, Klaus Weber | 2019-12-31 |
| 9907737 | Composition comprising ferulic acid ethyl ester and aryl alkanol | Klaus Weber, Peter Oltmanns, Sabine HERWEG, Sarah Erichsen, Carsten Bungenstock +1 more | 2018-03-06 |
| 9883671 | Mixture of natural or nature-identical alcohols with improved effectiveness | Ralf Gradtke, Klaus Weber, Stefan SAKULOWSKI | 2018-02-06 |
| 9872496 | Microbicidal preparations based on 1, 2-benzisothiazonlin-3-one with a content of aromatic alcohol | Gisela Hahn, Klaus Weber, Ralf Gradtke, Wolfgang Siegert | 2018-01-23 |
| 9446071 | Antimicrobially active compositions based on zinc compound, glycerine monoalkyl ether and antioxidant | Petra Kolditz, Klaus Weber, Carsten Bungenstock, Sabine HERWEG | 2016-09-20 |
| 9212331 | Additive mixture for the bactericidal and anticorrosive additization of fuels | Ralf Gradtke, Jennifer Knopf, Ingo Krull | 2015-12-15 |
| 8895043 | Reducing formaldehyde emissions in formal-containing compositions | Ralf Gradtke, Ingo Krull, Klaus Weber | 2014-11-25 |
| 8877983 | Process for the preparation of 1-alkyl glycerol ethers | Martin Balthasar, Ralf Gradtke, Klaus Weber, Heinz-Georg Steffen | 2014-11-04 |
| 8864853 | Additive mixture for the bactericidal and anticorrosive additization of fuels | Ralf Gradtke, Jennifer Knopf, Ingo Krull | 2014-10-21 |
| 8841349 | Stabilize compositions based on monoalkyl glycerol ethers and aromatic alcohols | Ralf Gradtke, Petra Kolditz, Klaus Weber | 2014-09-23 |
| 8795698 | System cleaner concentrate | Ralf Gradtke, Ingo Krull | 2014-08-05 |
| 8765795 | Isothiazolone-containing preservative with improved effectiveness | Ralf Gradtke, Petra Kolditz | 2014-07-01 |
| 8765657 | Antimicrobially effective use solutions comprising combinations of isothiazolones and amines | Ralf Gradtke, Ingo Krull, Jennifer Knopf | 2014-07-01 |
| 8728998 | Glyceryl ethers as preservatives for cooling lubricants | Ralf Gradtke, Wolfgang Siegert, Karl-Heinz Diehl, Klaus Weber | 2014-05-20 |
| 8710103 | Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria | Ralf Gradtke, Wolfgang Siegert, Michael Mohr, Klaus Weber | 2014-04-29 |
| 8609697 | Stabilized, antimicrobially effective composition with a content of bispyridinium alkane | Andreas Dettmann, Sabine Behrends, Mona Golombiewski, Thomas Spuida, Elke Kassens | 2013-12-17 |
| 8592489 | Storage-stable compositions of glycerol monoalkyl ethers | Ralf Gradtke | 2013-11-26 |
| 8592358 | Storage-stable, synergistic microbicidal concentrates containing an isothiazolone, an amine and an oxidizing agent | Ralf Gradtke, Ingo Krull, Jennifer Knopf | 2013-11-26 |
| 8568754 | Low-emission formaldehyde donor preparations and use thereof | Ralf Gradtke, Ingo Krull, Klaus Weber | 2013-10-29 |
| 8501206 | Liquid concentrate for preserving cosmetics | Gisela Hahn, Klaus Weber, Ralf Gradke | 2013-08-06 |
| 8440725 | Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria | Ralf Gradtke, Wolfgang Siegert, Michael Mohr, Klaus Weber | 2013-05-14 |
| 8349881 | Methods for preserving technical products such as fuels and lubricants with a microbicidal composition | Ralf Gradtke, Klaus Weber, Wolfgang Siegert | 2013-01-08 |