Issued Patents All Time
Showing 176–200 of 244 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5099074 | Process for the preparation of polyether glycols | Herbert Mueller, Gerhard Jeschek, Hans-Juergen Weyer | 1992-03-24 |
| 5097077 | Purification of heteropolyacid-containing polyalkylene ether glycols | Herbert Mueller, Gerhard Jeschek, Hans-Juergen Weyer | 1992-03-17 |
| 5073650 | Preparation of 1,4-butanediol | Uwe Stabel, Hans-Juergen Gosch, Wolfgang Harder, Claus Hechler | 1991-12-17 |
| 5068361 | Preparation of caprolactone | Wolfgang Richter, Uwe Vagt | 1991-11-26 |
| 5068398 | Preparation of 6-aminocaproic esters | Franz Merger, Wolfgang Harder, Claus-Ulrich Priester, Uwe Vagt | 1991-11-26 |
| 5032684 | Continuous purification of caprolactam | Gerald Neubauer, Josef Ritz, Hugo Fuchs, David Agar, Uwe Vagt | 1991-07-16 |
| 5030328 | Method of separating .gamma.-butyrolactone from mixtures containing diethyl succinate | Peter Stops, Erwin Brunner, Rudolf Weigand | 1991-07-09 |
| 5008408 | Preparation of 1,4-butanediol and tetrahydrofuran | Juergen Frank, Franz Merger, Hans-Juergen Weyer | 1991-04-16 |
| 5003102 | Preparation of 5-formylvaleric esters | Werner Bertleff, Rudolf Kummer, Franz Merger, Heinz-Walter Schneider | 1991-03-26 |
| 4990688 | Removal of cyclohexanol | Hans-Juergen Gosch | 1991-02-05 |
| 4990692 | Removal of cyclohexanol | Hans-Juergen Gosch | 1991-02-05 |
| 4982018 | Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids | Hans-Juergen Gosch, Hermann Luyken | 1991-01-01 |
| 4963673 | Preparation of caprolactam | Franz Merger, Claus-Ulrich Priester | 1990-10-16 |
| 4963672 | Preparation of caprolactam | Franz Merger, Wolfgang Harder, Claus-Ulrich Priester, Uwe Vagt | 1990-10-16 |
| 4950429 | Preparation of 6-aminocaproic acid | Uwe Vagt, Franz Merger, Hans-Martin Hutmacher | 1990-08-21 |
| 4940805 | Preparation of 1,4-butanediol or tetrahydrofuran or both | Hans-Juergen Gosch, Wolfgang Harder, Klaus-Dieter Malsch, Manfred Eggersdorfer, Lothar Franz +5 more | 1990-07-10 |
| 4935269 | Longitudinal side edge of a motor vehicle and profiled strip combination | Dietmar Hermann | 1990-06-19 |
| 4933487 | Preparation of 4-pentenates | Wolfgang Hoelderich, Heinrich Aichinger, Fritz Naeumann | 1990-06-12 |
| 4931590 | Preparation of adipic acid | Rudolf Kummer, Franz Merger, Werner Bertleff | 1990-06-05 |
| 4906769 | Isomerization of 2-pentenoates to 3-pentenoates | Franz Merger, Hans-Juergen Gosch | 1990-03-06 |
| 4879406 | Preparation of pentenoic esters from formylvaleric esters | Franz Merger, Juergen Frank, Uwe Vagi | 1989-11-07 |
| 4874889 | Isomerization of 2-pentenoates to 3-pentenoates | Franz Merger, Hans-Juergen Gosch | 1989-10-17 |
| 4873362 | Preparation of 2-substituted 4-acyloxy-2-butenals | Franz Merger, Hans Horler | 1989-10-10 |
| 4853473 | Preparation of 2(5H)-furanones | Juergen Frank, Franz Merger, Michael Roeper, Uwe Vagt | 1989-08-01 |
| 4845247 | 3,4,-dihydro-2H-pyrans | Wolfgang Spiegler, Norbert Goetz, Manfred Sauerwald, Toni Dockner | 1989-07-04 |