Issued Patents All Time
Showing 76–100 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709097 | Conversion of 1,3-dioxanes to 4-oxa-aldehydes | Wolfgang Hoelderich, Rolf Fischer | 1987-11-24 |
| 4709072 | Joint preparation of ethylene cyanohydrin and its ethers | Hans-Martin Hutmacher, Peter Hettinger, Dieter Voges, Wolfgang Lengsfeld | 1987-11-24 |
| 4695645 | Process for the preparation of N,o-substituted mono-and/or polyurethanes | Friedrich Towae | 1987-09-22 |
| 4694107 | Preparation of ketones by isomerization of aldehydes | Wolfgang Hoelderich, Wolf D. Mross, Rolf Fischer | 1987-09-15 |
| 4686302 | Simultaneous preparation of nitriles and acrylamide or methacrylamide | Wolfgang Schwarz | 1987-08-11 |
| 4677230 | Preparation of 2-methyl-2-alkenals | Leopold Hupfer, Franz J. Broecker, Rolf Fischer | 1987-06-30 |
| 4672137 | Preparation of 1,3-di(alkoxycarbonylamino)propanes | Joerg Liebe | 1987-06-09 |
| 4665219 | Isolation of neopentyl glycol hydroxypivalate | Peter Hettinger, Theodor Weber, Guenter Boettger, Wolfgang Koernig | 1987-05-12 |
| 4638085 | Preparation of methyl methacrylate from methacrolein | Franz J. Broecker, Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Friedbert Nees | 1987-01-20 |
| 4634558 | Preparation of .alpha.-substituted acrylamides | Wolfgang Schwarz | 1987-01-06 |
| 4622428 | Preparation of 1,3-diamino-2,2-dialkylpropanes | Dieter Voges, Siegfried Winderl | 1986-11-11 |
| 4613466 | Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms | Gerhard Nestler, Friedrich Towae, Hans Hellbach | 1986-09-23 |
| 4611079 | Process for the preparation of N-aryl di- or polyurethanes | Friedrich Towae | 1986-09-09 |
| 4599458 | Preparation of 2-methylalk-2-enals | Rolf Fischer, Wolfgang Hoelderich, Wolf D. Mross, Hans-Martin Weitz | 1986-07-08 |
| 4597907 | Preparation of .alpha.-substituted acrylamides | Wolfgang Schwarz | 1986-07-01 |
| 4596679 | Multiple-step process for the preparation of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate | Hans Hellbach, Friedrich Towae | 1986-06-24 |
| 4596678 | Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue | Friedrich Towae, Hans Hellbach, Gunther Isbarn, Waldemar Koehler | 1986-06-24 |
| 4595778 | Preparation of methacrylic acid and catalyst therefor | Gerd Duembgen, Gerd Fouquet, Richard Krabetz, Friedbert Nees | 1986-06-17 |
| 4594461 | Preparation of trimethylolalkanes from alkanals and formaldehyde | Peter Hettinger, Leopold Hupfer, Juergen Paetsch | 1986-06-10 |
| 4560822 | Preparation of dienes by dehydration of aldehydes | Wolfgang Hoelderich, Wolf D. Mross, Gerd Fouquet | 1985-12-24 |
| 4552985 | Preparation of aldols | Peter Hettinger, Arno Lange | 1985-11-12 |
| 4537901 | Insecticidal carbamates | Arno Lange, Peter Hettinger, Heinrich Adolphi | 1985-08-27 |
| 4537960 | Preparation of carbamates | Gerhard Nestler, Friedrich Towae | 1985-08-27 |
| 4530796 | Process for the preparation of isocyanates through the thermal cleavage of urethanes | Otto Mattner, Friedrich Towae | 1985-07-23 |
| 4520125 | Catalyst for the preparation of methyl methacrylate | Karl Baer, Peter Bassler, Gerd Duembgen, Gerd Fouquet, Richard Krabetz +1 more | 1985-05-28 |