TW

Thomas Wessel

CL Clariant: 7 patents #40 of 540Top 8%
The Dow Chemical: 3 patents #1,092 of 4,115Top 30%
Hoechst Gmbh: 3 patents #1,206 of 4,020Top 30%
A& Aventis Research & Technologies Gmbh &: 2 patents #24 of 131Top 20%
SB Sabic Innovative Plastics B.V.: 2 patents #286 of 817Top 40%
CA Cassella Aktiengesellschaft: 2 patents #75 of 243Top 35%
Basf Se: 1 patents #8,065 of 13,826Top 60%
SP Sunovion Pharmaceuticals: 1 patents #87 of 118Top 75%
Overall (All Time): #210,817 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
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