Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822110 | CaO-catalyzed preparation of isophoronenitrile | Dagmar Pascale Kunsmann-Keitel, Gerold Braun, Ingo Münster, Gunter Scherhag, Wolfgang Siegel | 2004-11-23 |
| 6764613 | N-alkyl ammonium acetonitrile salts, methods therefor and compositions therewith | Ulrich Annen, James E. Deline, Kevin A. Klotter, Michael Muller, Sarah A. Perkins +5 more | 2004-07-20 |
| 6624333 | Method for producing bisphenol alcoxylates | Stefan Koser, Wolfgang Kasel, Arend Jouke Kingma, Toni Dockner | 2003-09-23 |
| 6593473 | Method of preparing granular N-alkyl-ammoniumacetonitrile salts | Michael Schönherr, Hans-Jürgen Kinder, Gregor Schurmann | 2003-07-15 |
| 6235218 | Process for preparing N-alkyl ammonium acetonitrile compounds | Ulrich Annen, James E. Deline, Lafayette D. Foland, Kevin A. Klotter, Josef Muller +7 more | 2001-05-22 |
| 6197992 | Monoolefinic C5 mononitriles, method for the production and the use thereof | Jakob Fischer, Wolfgang Siegel, Gerald Meyer | 2001-03-06 |
| 6175019 | Process for the preparation of 1,3-dimethylimidazolium 4-carboxylate | Jakob Fischer, Wolfgang Siegel, Volker Bomm, Martin Fischer | 2001-01-16 |
| 6174853 | Textile detergent formulation on the basis of quaternized glycine nitriles, bleaching agents, nonionic and/or anionic tensides and calcium ion and/or magnesium ion sequestering compounds | Dieter Bockh, Gregor Schurmann, Michael Schönherr | 2001-01-16 |
| 6147258 | Preparation of substituted guanidine derivatives | Thomas Greindl, Günter Scherr, Rolf Schneider | 2000-11-14 |
| 6130347 | Preparation of cyanoacetic esters | Manfred Julius, Rolf Schneider, Jakob Fischer | 2000-10-10 |
| 6093848 | Preparation of substituted guanidine derivatives | Thomas Greindl, Günter Scherr, Rolf Schneider | 2000-07-25 |
| 6028204 | Process for preparing phthalides | Klemens Massonne, Rainer Becker, Wolfgang Reif, Horst Neuhauser, Andreas Gieseler | 2000-02-22 |
| 6022988 | Preparation of 3-cyano-3, 5, 5-trimethylcyclohexanone | Jakob Fischer, Wolfgang Siegel, Volker Bomm, Martin Fischer | 2000-02-08 |
| 5994582 | Preparation of substituted guanidine derivative | Thomas Greindl, Günter Scherr, Rolf Schneider | 1999-11-30 |
| 5969182 | Preparation of substituted guanidine derivatives | Thomas Greindl, Günter Scherr, Rolf Schneider | 1999-10-19 |
| 5516928 | Preparaion of 3.cyano-3,5,5-trimethylcyclohexanone | Gerhard Laqua, Tom Witzel, Franz Merger | 1996-05-14 |