Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7250065 | Fuel compositions containing propoxylate | Wolfgang H. H. Gunther, Harald Schwahn, Irene Trötsch-Schaller | 2007-07-31 |
| 6909018 | Preparation of polyalkeneamines | Johann-Peter Melder, Gerhard Blum, Wolfgang H. H. Gunther, Dietmar Posselt | 2005-06-21 |
| 6783693 | Hydraulic fluids, containing cyclic carboxylic acid derivatives | Bayram Aydin, Uwe Fidorra, Arthur Hohn, Ladislaus Meszaros, Jan Nouwen +3 more | 2004-08-31 |
| 6604598 | Fuel tank for automobiles with fuel cell drive | Wolfgang Rohde, Markus Hölzle, Eckhard Sausen | 2003-08-12 |
| 6579846 | Acylated polymeric polyamines | Michael Zirnstein, Günter Oetter, Kristin Tiefensee, Jürgen Decker, Michael Ehle | 2003-06-17 |
| 6548461 | Polyalkene alcohol polyetheramines and their use in fuels and lubricants | Wolfgang H. H. Gunther, Dietmar Posselt, Klemens Massonne, Hans Peter Rath | 2003-04-15 |
| 6545067 | Additives for mineral building materials containing cement | Karl-Heinz Buchner, Michael Ehle, Johannes Perner, Markus Hartmann, Wolfgang H. H. Gunther +1 more | 2003-04-08 |
| 6533830 | Polyalkene alcohol-polyalkoxylates and their use in fuels and lubricants | Wolfgang H. H. Gunther, Hans Peter Rath, Irene Trötsch-Schaller | 2003-03-18 |
| 6512055 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Walter Denzinger, Heinrich Hartmann, Helmut Mach, Harald Schwahn +1 more | 2003-01-28 |
| 6509012 | Aqueous cationic tenside preparations, method for the production and use thereof | Peter Hossel, Michael Zirnstein, Walter Schunter, Friedrich Wirsing, Wolfgang Kasel | 2003-01-21 |
| 6413445 | Antifreeze concentrates and coolant compositions containing these concentrates for cooling circuits in internal combustion engines | Wolfgang H. H. Gunther, Klaus Pfitzner, Michael Gillich, Ladislaus Meszaros | 2002-07-02 |
| 6365637 | Use of esters or amides of hydroxylated carboxylic acids as solubilizers | Michael Zirnstein, Folker Ruchatz, Karl Kolter | 2002-04-02 |
| 6303832 | Oxyalkylation of alkanols with alkylene oxides | Irene Trötsch-Schaller, Günter Oetter, Michael Stosser | 2001-10-16 |
| 6284716 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Walter Denzinger, Heinrich Hartmann, Helmut Mach, Harald Schwahn +1 more | 2001-09-04 |
| 6267936 | Method for effecting solvent extraction of metal ions using hydrocarbon soluble aminomethylene phosphonic acid compounds | Francisco Delmas, Carlos Nogueira, Michael Ehle | 2001-07-31 |
| 6225507 | Method of preparing aldehydes by hydroformylation with a rhodium catalyst and recovery of the rhodium catalyst by extraction | Bernhard Giessler, Heinz-Josef Kneuper, Michael Roper, Rocco Paciello, Wolfgang H. H. Gunther | 2001-05-01 |
| 6165971 | Use of amides of polymerized fatty acids as thickeners | Michael Zirnstein, Kristin Tiefensee, Günter Oetter | 2000-12-26 |
| 6140541 | Process for preparing polyalkene amines | Johann-Peter Melder, Gerhard Blum, Wolfgang H. H. Gunther, Dietmar Posselt | 2000-10-31 |
| 6077460 | Corrosion inhibition | Günter Oetter, Rudi Kroner, Norbert Mahr, Hans-Jurgen Jatzek, Klaus Taeger | 2000-06-20 |
| 6045719 | Use of quaternized imidazoles as corrosion inhibitors for non-ferrous metals, and coolant compositions and antifreeze concentrates comprising them | Ladislaus Meszaros, Michael Gillich, Klaus Pfitzner, Wolfgang H. H. Gunther | 2000-04-04 |
| 6033442 | Use of aqueous solutions or dispersions of copolymers of carboxyl-group-containing monomers, ethylenically unsaturated acetals, ketals or orthocarboxylic acid esters and optionally other copolymerizable monomers as leather tanning agents | Walter Denzinger, Axel Kistenmacher, Gerhard Wolf, Michael Kneip, Norbert Greif | 2000-03-07 |
| 5919275 | Fuel and lubricant additives, their preparation and fuel or lubricant compositions containing these additives | Jurgen Mohr, Hans-Joachim Muller, Dietmar Posselt, Wolfgang H. H. Gunther | 1999-07-06 |
| 5876467 | Use of carboxylic esters as fuel additives or lubricant additives and their preparation | Arthur Hohn, Hans-Günter Funke, Wolfgang H. H. Gunther, Harald Schwahn | 1999-03-02 |
| 5872149 | Alk(en)yldicarboxylic acid bisesters, their use, and processes for their preparation | Gabriele Dralle-Voss, Günter Oetter, Hans-Ulrich Wekel | 1999-02-16 |
| 5863879 | Dye transfer inhibitors for detergents | Michael Zirnstein, Wolfgang Trieselt, Claudia Nilz, Michael Kroner, Wolfgang H. H. Gunther | 1999-01-26 |