Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10373748 | Temperature-stable soft-magnetic powder | Sandro Pagano, Jae Hyung Hwang, Ralf Liebscher, Frank Prechtl, Oliver Koch +1 more | 2019-08-06 |
| 8608824 | Integrated method for producing carbonyl iron powder and hydrocarbons | Jochen Steiner, Ekkehard Schwab, Andreas Keller, Ulrich Gräβle, Manfred Julius | 2013-12-17 |
| 7335343 | Preparation of iron pentacarbonyl | Gabriele Unger, Hendrik Schönfelder, Hans-Josef Sterzel, Klaus Kuhling | 2008-02-26 |
| 7276220 | Preparation of iron pentacarbonyl | Gabriele Unger, Hendrik Schönfelder, Hans-Josef Sterzel, Klaus Kuhling | 2007-10-02 |
| 6758990 | Stabilizing agent for hydroxylamine solutions | Markus Weber, Hans-Josef Sterzel, Eckhard Ströfer | 2004-07-06 |
| 6758946 | Recycling hydroxylamine-containing stripper solutions | Heiner Schelling | 2004-07-06 |
| 6534681 | Method for preparing highly stabilized hydroxylamine solutions | Hans J. Wilfinger | 2003-03-18 |
| 6524545 | Method for producing aqueous hydroxylamine solutions which are substantially free of metal ions | Hans-Michael Schneider | 2003-02-25 |
| 6328941 | Thermal decomposition of N2O | David Agar | 2001-12-11 |
| 6299734 | Preparation of an aqueous solution of free hydroxylamine | Peter Mauer, Eckhard Ströfer, Heiner Schelling, Hans-Michael Schneider | 2001-10-09 |
| 6254735 | Process for separating medium boiling substances from a mixture of low, medium and high boiling substances | — | 2001-07-03 |
| 6211113 | Catalyst beds for non-steady state processes | Klaus Harth, Alfred Hagemeyer | 2001-04-03 |
| 6190567 | Breaking down hydroxylamine in aqueous solutions | Bernd Leutner, Frank Hanus, Hans-Michael Schneider, Uwe Wegmann | 2001-02-20 |
| 6153799 | Method for producing highly pure aqueous hydroxylamine solutions | Heiner Schelling, Peter Pfab, Eckhard Ströfer | 2000-11-28 |
| 5866737 | Oxidation and oxydehydrogenation of hydrocarbons in the fluidized bed | Alfred Hagemeyer, Jurgen Schweinzer | 1999-02-02 |
| 5837107 | Process for production of aqueous solutions of free hydroxylamine | Hans-Michael Schneider, Bernd Leutner, Albrecht Friederang | 1998-11-17 |
| 5788743 | Selective separation and recovery of chlorine from gas mixtures | Joachim Pfeffinger | 1998-08-04 |
| 5780700 | Catalytic oxidative dehydrogenation of alkylaromatics and paraffins | Alfred Hagemeyer, Thomas Lautensack, Axel Deimling | 1998-07-14 |
| 5691262 | Regeneration of catalysts used in oxidative dehydrogenation of alkylaromatics and paraffins | Alfred Hagemeyer, Axel Deimling | 1997-11-25 |
| 5132449 | Method for the catalytic vapor phase oxydehydrogenation of isobutyric acid | Klaus Langerbeins, Ruediger Jelitte, Wolfgang Ruppert, Gerhard Emig | 1992-07-21 |