Issued Patents All Time
Showing 26–50 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286263 | Use of copolymers based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent | Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Walter Denzinger +1 more | 1994-02-15 |
| 5282872 | Fuel for Otto-cycle engines | Brigitte Wegner, Juergen Mohr, Roland Schwen, Klaus Barthold, Juergen Thomas | 1994-02-01 |
| 5279613 | Copolymers based on long-chain olefins and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent | Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Walter Denzinger +1 more | 1994-01-18 |
| 5266165 | Paper sizing using copolymers of long-chain olefins and maleic anhydride in the form of the semiamides with morpholine | Arnold DeClercq, Walter Denzinger, Norbert Greif, Heinrich Hartmann, Ulrich Riebeling | 1993-11-30 |
| 5250225 | Ammonium salt of an alkenylsuccinic half-amide and the use thereof as corrosion inhibitor in oil and/or gas production technology | Brigitte Wegner, Wilhelmus Slotman | 1993-10-05 |
| 5234626 | Methods of demulsifying employing condensates as demulsifiers for oil-in water emulsions | Rolf Fikentscher, Johannes P. Dix, Wilfried Sager, Hans-Henning Vogel, Guenther Elfers | 1993-08-10 |
| 5217813 | Polyethyleneimine and polyvinylamine derivatives, aluminum-based substrate materials coated with these derivatives and the use thereof for the production of offset printing plates | Joachim Roser, Juergen Mohr, Armin Lange, Walter Denzinger, Thomas Loerzer | 1993-06-08 |
| 5213585 | Alkoxylated polyetherdiamines preparation thereof, and gasolines containing same | Juergen Mohr, Roland Schwen, Juergen Thomas | 1993-05-25 |
| 5194068 | Ester-containing fuel for gasoline engines and diesel engines | Juergen Mohr, Roland Schwen, Hans Peter Rath, Juergen Thomas, Hans-Henning Vogel | 1993-03-16 |
| 5190898 | Pourable molding compound containing sinterable powders | Johan ter Maat, Hans-Josef Sterzel | 1993-03-02 |
| 5147644 | Use of mixtures of polyglycerol fatty esters as emulsifiers in cosmetic and pharmaceutical formulations | Brigette Wegner, Karl Stork, Franz Frosch, Hans-Ulrich Wekel | 1992-09-15 |
| 5145948 | Preparation of highly viscous adducts of butylene oxide with alcohols | Roland Schwen, Richard Baur, Charalampos Gousetis, Juergen Mohr, Helmut Mach | 1992-09-08 |
| 5124181 | Copolymers based on long-chain unsaturated esters and ethylenically unsaturated carboxylic acids for making leather and furs water repellent | Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Walter Denzinger +1 more | 1992-06-23 |
| 5112364 | Gasoline-engine fuels containing polyetheramines or polyetheramine derivatives | Hans Peter Rath, Helmut Mach, Willibald Schoenleben, Hans-Henning Vogel | 1992-05-12 |
| 5071445 | Novel reaction products of aminoalkylene polycarboxylic acids with secondary amines and middle distillate compositions containing the aforesaid | Brigitte Wegner, Klaus Barthold, Erich Schwartz, Egon Buettner, Manfred Schramm | 1991-12-10 |
| 5064552 | Nitrite- and phosphate-free antifreeze based on glycol | Juergen Mohr, Gert Liebold, Guenter Frey | 1991-11-12 |
| 5053154 | Use of adducts of 1,2-butylene oxide with H-azidic organic compounds as lubricants, and lubricants containing these adducts | Roland Schwen, Richard Baur, Charalampos Gousetis, Juergen Mohr, Helmut Mach | 1991-10-01 |
| 5036699 | Apparatus for testing fuel additives and oil additives | Rolf Fikentscher, Roland Schwen | 1991-08-06 |
| 5026494 | Amino group-containing graft polymer, and its use as a dispersing viscosity index improver | Walter Denzinger, Helmut Mach, Juergen Mohr, Roland Schwen, Hans-Henning Vogel | 1991-06-25 |
| 5009670 | Fuels for gasoline engines | Franz-Dieter Martischius, Hans-Henning Vogel, Norbert Greif, Walter Denzinger, Heinrich Hartmann | 1991-04-23 |
| 5004478 | Motor fuel for internal combustion engines | Hans-Henning Vogel, Hans Peter Rath, Claus P. Jakob | 1991-04-02 |
| 4978780 | Preparation of ether sulfonates and polyglycol ether sulfonates, and products prepared by this method | Rolf Fikentscher, Norbert Greif, Karl Stork | 1990-12-18 |
| 4959077 | Fuels for gasoline engines | Franz-Dieter Martischius, Hans Peter Rath, Hans-Henning Vogel, Norbert Greif, Walter Denzinger +1 more | 1990-09-25 |
| 4935162 | Alkoxylated amido-containing polyamines and their use for breaking oil-in-water and water-in-oil emulsions | Klaus Barthold, Richard Baur, Rolf Fikentscher, Juergen Lasowski | 1990-06-19 |
| 4871375 | Fuels for Otto engines | Franz-Dieter Martischius, Hans-Henning Vogel | 1989-10-03 |