Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8329950 | Process for preparation of trans 4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-1Napthalenamine | Judy Caron, Karim Lalji, Mark A. Varney, Roger P. Bakale, Surendra Singh +4 more | 2012-12-11 |
| 7732559 | Method of making halophthalic acids and halophthalic anhydrides | Robert Edgar Colborn, David Bruce Hall, Peter Koch, Bernd Volker Demuth, Karl E. Mack +5 more | 2010-06-08 |
| 7541489 | Method of making halophthalic acids and halophthalic anhydrides | Robert Edgar Colborn, David Bruce Hall, Peter Koch, Bernd Volker Demuth, KarlErnst Mack +5 more | 2009-06-02 |
| 7078571 | Preparation of 1,3-di-halo-substituted benzene derivatives | Stefan Brand, Daniel Decker | 2006-07-18 |
| 6844468 | Process for preparing substituted benzoyl chlorides | Lars Bierer, Joachim Ritzer, Berthold Schiemenz | 2005-01-18 |
| 6645904 | Aminophosphonium compounds | Berthold Schiemenz, Ralf Pfirmann | 2003-11-11 |
| 6465643 | Aminophosphonium compounds | Berthold Schiemenz, Ralf Pfirmann | 2002-10-15 |
| 6407029 | Mixtures comprising tetrakis(pyrrolidino/piperdino)phosphonium salts | Berthold Schiemenz, Ralf Pfirmann, Andreas Beck, Walter Hahn | 2002-06-18 |
| 6187952 | Two-step production of 3-chloro-4-fluoro-benzoyl chloride by chlorination | Ralf Pfirmann | 2001-02-13 |
| 6166242 | Method for producing compounds containing fluorine, in particular fluorobenzaldhydes and fluorobenzonitriles | Wolfgang Appel, Sergej Pasenok | 2000-12-26 |
| 6114589 | Process for the preparation of fluorinated aromatic compounds | Thomas Schach, Maren Gutermuth | 2000-09-05 |
| 6103659 | Catalyst comprising an amidophosphonium salt for halex reactions | Sergej Pasenok, Wolfgang Appel, Ralf Pfirmann, Thomas Schach, Hans H. Schubert | 2000-08-15 |
| 6051621 | High temperature syndiotactic styrene polymer foam | Kyung W. Suh, Creston D. Shmidt, Daniel D. Imeokparia, Alan Platt | 2000-04-18 |
| 5889069 | High temperature syndiotactic styrene polymer foam | Kyung W. Suh, Creston D. Shmidt, Daniel D. Imeokparia, Alan Platt | 1999-03-30 |
| 5886218 | Process for preparing 4, 5-dichloro-2-methylbenzoic acid | Peter Koch | 1999-03-23 |
| 5705674 | Process for preparing ortho-nitrobenzonitriles | Peter Koch | 1998-01-06 |
| 5654493 | Process for preparing 4-bromophenyl alkyl ethers | — | 1997-08-05 |
| 5424479 | Process for the preparation of aromatic methyl methoxycarboxylates | Rolf Muller | 1995-06-13 |
| 5412150 | Process for the preparation of methyl 5-bromo-6-methoxy-1-naphthoate | — | 1995-05-02 |
| 5391603 | Impact modified syndiotactic vinyl aromatic polymers | Bruce P. Thill, Yi-Bin Huang | 1995-02-21 |
| 5124449 | Azaporphyrin derivatives | Burchard Franck, Hartmann Koenig, Christian Eickmeier, Michael VOELKER | 1992-06-23 |