Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12005602 | Method for producing wood fiberboards | Ferdinand Leifeld, Sabine Both | 2024-06-11 |
| 11624153 | Method of increasing the throughput and/or decreasing energy usage of a pulping process | John Andrew Randolph, Laurence Rys, Ferdinand Leifeld | 2023-04-11 |
| 10968295 | Acrylic acid polymers neutralized with sodium and calcium ions and having a narrow molecular weight distribution | Ferdinand Leifeld, Steffen Henkes, Massimiliano Bordignon, Vandana Kurkal-Siebert, Laszlo Szarvas +1 more | 2021-04-06 |
| 10836208 | Rubber composition, its manufacture and use | Stephan Hueffer, Fritz Nimtz, Alejandra Garcia Marcos | 2020-11-17 |
| 9076920 | Aqueous alkaline etching and cleaning composition and method for treating the surface of silicon substrates | Berthold Ferstl, Simon Braun | 2015-07-07 |
| 9034473 | Method for passivating a metallic surface with a basic composition | Bernd Laubusch, Oihana Elizalde | 2015-05-19 |
| 8986467 | Method for passivating metallic surfaces with aqueous compositions comprising surfactants | Guido Vandermeulen, Bernd Laubusch, Helmut Witteler, Jurgen Tropsch | 2015-03-24 |
| 8629205 | Microgels combined with functional additives | Patrick Galda, Torsten Ziser, Thomas Früh, Gunther Steppan, Werner Obrecht | 2014-01-14 |
| 8119581 | Use of crosslinked microgels for modifying the temperature-dependent behavior of non-crosslinkable organic media | Patrick Galda, Torsten Ziser, Thomas Früh, Werner Obrecht | 2012-02-21 |
| 7939594 | Compositions that contain microgels and thickening agents | Werner Obrecht, Torsten Ziser, Thomas Früh, Patrick Galda | 2011-05-10 |
| 6528462 | Process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds | Ludger Heiliger, Alfred Pauli, Joachim Hegmann, Michael Wühr, Kurt Schilling | 2003-03-04 |
| 5614483 | Stabilized lubricant base material | Joachim Korff, Hans-Jurgen Kress, Volker Müller | 1997-03-25 |
| 5567854 | Process for separating mixtures of nitrobenzaldehyde isomers | Wolfram Kissener, Herbert Emde | 1996-10-22 |
| 5368776 | Corrosion protection additives based on epoxides | Volker Schafer, Robert Kohler, Alfred Pauli | 1994-11-29 |