Issued Patents All Time
Showing 26–50 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5254752 | Preparation of 4-halobenzyl alcohols | Martin Brudermueller, Martin Schmidt-Radde | 1993-10-19 |
| 5247120 | Preparation of aminopropionitriles | Martin Brudermueller, Claus-Ulrich Priester, Wolfgang Harder, Siegfried Winderl | 1993-09-21 |
| 5239120 | Preparation of 2-(3-aminopropyl)-cycloalkylamines | Claus-Ulrich Priester, Gerhard Koppenhoefer, Wolfgang Harder, Tom Witzel, Helmut Lermer +1 more | 1993-08-24 |
| 5221767 | Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Matthias Schwarzmann +2 more | 1993-06-22 |
| 5202465 | Preparation of 2-methylenepropane-1,3-diol dicarboxylates | Tom Witzel, Martin Brudermueller | 1993-04-13 |
| 5202461 | 3-substituted 2-hydroxy-3-formylpropionic esters, the preparation thereof and the use thereof for preparing 3-substituted 3-formylacrylic esters | Juergen Frank | 1993-04-13 |
| 5173468 | Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c X.sup.2.sub.d X.sup.3.sub.e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Matthias Schwarzmann +2 more | 1992-12-22 |
| 5166443 | Preparation of 2,2-disubstituted pentane-1,5-diamines | Claus-Ulrich Priester, Tom Witzel, Gerhard Koppenhoefer, Ludwig Schuster | 1992-11-24 |
| 5166447 | Preparation of cyclopentanones | Tom Witzel | 1992-11-24 |
| 5162552 | Preparation of 4-acetals of butene-1,4-dial and novel acetals of butene-1,4-dial | Rolf Fischer, Hans Horler, Juergen Frank | 1992-11-10 |
| 5149861 | Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes | Peter Hettinger, Leopold Hupfer, Juergen Paetsch, Heribert Deck, Heinz Auer +1 more | 1992-09-22 |
| 5118864 | Preparation of cyclopentenones | Tom Witzel, Hans Horler, Helmut Lermer | 1992-06-02 |
| 5087744 | Preparation of methacrylic acid | Richard Krabetz, Gerd Duembgen, Michael Jaeger, Fritz Thiessen, Herbert Vogal | 1992-02-11 |
| 5077438 | Process for the preparation of acrolein | Werner Steck, Matthias Schwarzmann, Kurt Weinacht | 1991-12-31 |
| 5068398 | Preparation of 6-aminocaproic esters | Rolf Fischer, Wolfgang Harder, Claus-Ulrich Priester, Uwe Vagt | 1991-11-26 |
| 5026920 | Obtaining alkanals having a 2-alkyl branch from alkanal mixtures | Michael Roeper, Joerg Liebe, Armin Volker Grenacher, Edgar Hahl | 1991-06-25 |
| 5012005 | Conversion of 1,3-dioxanes to 4-oxaaldehydes | Wolfgang Hoelderich | 1991-04-30 |
| 5008408 | Preparation of 1,4-butanediol and tetrahydrofuran | Rolf Fischer, Juergen Frank, Hans-Juergen Weyer | 1991-04-16 |
| 5003102 | Preparation of 5-formylvaleric esters | Werner Bertleff, Rolf Fischer, Rudolf Kummer, Heinz-Walter Schneider | 1991-03-26 |
| 5003089 | Preparation of cyclic 6-membered to 8-membered vinylene-1,2-dioxy compounds | Juergen Frank, Wolfgang Hoelderich, Toni Dockner, Manfred Sauerwald | 1991-03-26 |
| 4999453 | Preparation of olefinically unsaturated carboxylic esters having a terminal ester group | Hans Horler, Wolfgang Hoelderich, Tom Witzel | 1991-03-12 |
| 4997955 | Preparation of 1,1-disubstituted ethylene compounds | Joerg Liebe, Werner Bertleff | 1991-03-05 |
| 4981913 | Bridged, water-soluble copolymers, their preparation and their use | Dietmar Moench, Andreas Stange, Joerg Liebe, Heinrich Hartman, Manfred Schwartz | 1991-01-01 |
| 4965362 | Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin | Wolfgang Harder, Peter Hettinger, Claus-Ulrich Priester, Dieter Franz, Dieter Voges | 1990-10-23 |
| 4963672 | Preparation of caprolactam | Rolf Fischer, Wolfgang Harder, Claus-Ulrich Priester, Uwe Vagt | 1990-10-16 |