Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441110 | Method for producing halogen-free reactive polyisobutene | Christoph Sigwart, Thomas Narbeshuber, Karsten Eller, Manfred Barl, Rolf Fischer | 2002-08-27 |
| 6414207 | Preparation of a basic catalyst avoiding high temperatures | Ulrich Steinbrenner | 2002-07-02 |
| 6384154 | Preparation of halogen-free, reactive polyisobutene | Christoph Sigwart, Thomas Narbeshuber, Rolf Fischer, Ulrich Steinbrenner, Shelue Liang | 2002-05-07 |
| 6303833 | Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols | Georg Heinrich Grosch, Harald Larbig, Reinhard Lorenz, Dieter Junge, Ulrich Treuling | 2001-10-16 |
| 6284704 | Preparation of a basic catalyst avoiding high temperatures | Ulrich Steinbrenner | 2001-09-04 |
| 6046130 | Catalyst and side-chain alkylation therewith | Thomas Narbeshuber, Georg Heinrich Grosch, Michael Trefzer, Michael Baier | 2000-04-04 |
| 6043189 | Catalyst for side-chain alkylation | Thomas Narbeshuber, Michael Trefzer | 2000-03-28 |
| 5994562 | Preparation of N-alkenylcarboxamides | Klaus Ebel, Matthias Eiermann, Thomas Narbeshuber | 1999-11-30 |
| 5945575 | Method of producing reactive halogen-free, polyisobutene | Christoph Sigwart, Ulrich Müller, Hans Peter Rath, Rolf Fischer | 1999-08-31 |
| 5939595 | Preparation of diarylethanes | Klemens Massonne, Hermann Gausepohl, Martin Fischer, Christopher William Rieker, Lorenz Siggel | 1999-08-17 |
| 5880321 | Preparation of 1,1-diphenylethanes | Karsten Eller, Gunther Effler | 1999-03-09 |
| 5866733 | Preparation of diarylethanes | Klemens Massonne, Wolfgang Harder | 1999-02-02 |
| 5817871 | Preparation of amines | Uwe Dingerdissen, Gunter Lauth, Andreas Henne, Peter Stops, Karsten Eller | 1998-10-06 |
| 5773660 | Preparation of amines from olefins over hexagonal faujasites | Karsten Eller, Rudolf Kummer | 1998-06-30 |
| 5714430 | Mixtures containing fine metallic silver particles on a neutral to basic non-zeolite carrier oxide | Richard Thoma, Giorgio Greening, John-Bryan Speakman | 1998-02-03 |
| 5679868 | Preparation of glutaric dialdehyde | Heinz-Josef Kneuper, Rainer Becker, Juergen Schossig, Andreas Henne | 1997-10-21 |
| 5585496 | Catalytic preparation of condensation products of formaldehyde | Joaquim Henrique Teles, Johann-Peter Melder, Wolfgang Harder, Klaus Ebel, Carsten Groening +1 more | 1996-12-17 |
| 5508422 | Addition products of triazolium salts | Joaquim Henrique Teles, Johann-Peter Melder, Wolfgang Harder, Klaus Ebel, Carsten Groening +1 more | 1996-04-16 |
| 5410089 | Preparation of dihydroxyacetone | Wolfgang Harder, Herbert Vogel, Bernhard Knuth, Klaus Ebel, Carsten Groening | 1995-04-25 |
| 5386062 | Catalytic preparation of condensation products of formaldehyde | Joaquim Henrique Teles, Johann-Peter Melder, Wolfgang Harder, Klaus Ebel, Carsten Groening +1 more | 1995-01-31 |
| 5306847 | Manufacture of 1,2-propylene glycol | Wolfgang Harder | 1994-04-26 |
| 5298668 | Catalytic preparation of formaldehyde condensates | Wolfgang Harder, Klaus Ebel, Johann-Peter Melder, Joaquim Henrique Teles | 1994-03-29 |
| 5118883 | Preparation of glycols from formaldehyde | Wolfgang Harder | 1992-06-02 |