Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476963 | Supported catalyst, process for its preparation and its use for the preparation of vinyl acetate | Peter Wirtz, Karl-Fred Worner | 1995-12-19 |
| 5422329 | Supported catalyst, process for its preparation and its use for the preparation of vinyl acetate | Peter Wirtz, Karl-Fred Worner | 1995-06-06 |
| 5292931 | Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate | Peter Wirtz, Karl-Fred Worner, Klaus Eichler, Gunter Roscher, Ioan Nicolau | 1994-03-08 |
| 5250487 | Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate | Peter Wirtz, Karl-Fred Worner, Klaus Fichler, Gunter Roscher, Ioan Nicolau | 1993-10-05 |
| 5225388 | Method for making a catalyst | Peter Wirtz, Gunter Roscher, Klaus Eichler | 1993-07-06 |
| 4968833 | Process for the preparation of a glyoxylic acid ester | Robert K. Driscoll, Ernst I. Leupold, Wolfgang Ebertz | 1990-11-06 |
| 4902823 | Process for the preparation of vinyl acetate | Gunter Roscher, Klaus Eichler | 1990-02-20 |
| 4668819 | Process for the manufacture of unsaturated esters of carboxylic acids | Hans Fernholz, Hans Krekeler, G/u/ nter Roscher, Hans-Joachim Schmidt, Heinz Schmitz | 1987-05-26 |
| 4605809 | Aluminosilicates and silica gels having a low content of transition elements, a process for their use in the conversion of methanol to olefins | Heinz Litterer, Ernst I. Leupold, Herbert Baltes | 1986-08-12 |
| 4590217 | Process for the manufacture of acetic acid, acetaldehyde and ethanol | Ernst I. Leupold, Hans-Joachim Schmidt | 1986-05-20 |
| 4522800 | Process for the production of a crystalline aluminosilicate zeolite | Herbert Baltes, Heinz Litterer, Ernst I. Leupold | 1985-06-11 |
| 4481376 | Process for the synthesis of lower olefins from methanol and/or dimethyl ether | Ernst I. Leupold, Heinz Litterer | 1984-11-06 |
| 4442228 | Process for the manufacture of ethanol from synthesis gas | Ernst I. Leupold, Hans-Joachim Schmidt, Hans-Jurgen Arpe, Horst Hachenberg | 1984-04-10 |
| 4372878 | Process for the preparation of an aluminum silicate catalyst for converting methanol containing water and/or dimethyl ether containing water into lower olefins | Ernst I. Leupold, Horst Hachenberg, Hans-Joachim Schmidt, Klaus Unger | 1983-02-08 |
| 4370492 | Preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase | Therese Quadflieg, Gunter Roscher, Gunther Heck | 1983-01-25 |
| 4370261 | Carrier catalyst for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gaseous phase | Therese Quadflieg, Gunter Roscher, Gunther Heck | 1983-01-25 |
| 4340748 | Process for the manufacture of glyoxylic acid esters | Herbert Baltes, Ernst I. Leupold | 1982-07-20 |
| 4296266 | Process for the manufacture of lower olefins from methanol/water mixtures | Ernst I. Leupold, Horst Hachenberg, Hans-Joachim Schmidt | 1981-10-20 |
| 4288558 | Process for the manufacture of oxygen-containing carbon compounds from synthesis gas | Hans-Joachim Schmidt, Hans-Jurgen Arpe, Ernst I. Leupold | 1981-09-08 |
| 4247731 | Process for the manufacture of lower alkenes from methanol and/or dimethyl ether | Hans-Jurgen Arpe, Horst Hachenberg, Ernst I. Leupold | 1981-01-27 |
| 4224236 | Process for the manufacture of oxygen-containing carbon compounds from synthesis gas | Hans-Jurgen Arpe, Ernst I. Leupold, Hans-Joachim Schmidt | 1980-09-23 |
| 4214106 | Process for the preparation of ethylene glycol | Dieter Freudenberger | 1980-07-22 |