Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7211701 | Preparation of trimethylolpropane | Dirk Müller, Brian Schwegler, Ulrich Notheis, Ralph Armbrust, Hans-Detlef Heinz +1 more | 2007-05-01 |
| 7200992 | Method for controlling a hydraulic piston/cylinder unit | — | 2007-04-10 |
| 7000486 | Method for controlling an intermittently operating screw tool | Ulf Sittig | 2006-02-21 |
| 6710217 | Method for producing 4-chlorobiphenyl and 4-chlorobiphenyl-specific specifications | Reinhard Langer, Alexander Klausener, Lothar Puppe | 2004-03-23 |
| 6448455 | TMP/Vapor pressure filtration | Alexander Klausener | 2002-09-10 |
| 6441254 | Process for preparing trimethylol compounds and formic acid | Frank Dobert, Alexander Klausener, Wolfgang Eymann, Rolf Feller | 2002-08-27 |
| 6207010 | Preparation and use of iminodisuccinic acid salts | Torsten Groth, Winfried Joentgen, Frank Dobert, Eckhard Wenderoth, Thomas Roick | 2001-03-27 |
| 6187898 | Method for carrying out polycondensation reactions | Frank Dobert, Thomas Menzel, Torsten Groth, Winfried Joentgen, Ulrich Liesenfelder +2 more | 2001-02-13 |
| 6107518 | Preparation and use of iminodisuccinic acid salts | Torsten Groth, Winfried Joentgen, Frank Dobert, Eckhard Wenderoth, Thomas Roick | 2000-08-22 |
| 6100433 | Process for preparing 3-methoxy-1-propanol | Frank Dobert, Bernd-Michael Konig, Alexander Klausener | 2000-08-08 |
| 6054553 | Process for the preparation of polymers having recurring agents | Torsten Groth, Winfried Joentgen, Frank Dobert, Klaus-Peter Heise, Thomas Menzel +3 more | 2000-04-25 |
| 5977052 | Washing process using polycarboxylic acid salts | Lutz Heuer, Winfried Joentgen, Torsten Groth, Klaus-Peter Heise | 1999-11-02 |
| 5877350 | Process for the production of aromatic amines | Reinhard Langer, Hans-Josef Buysch, Ursula Pentling | 1999-03-02 |
| 5861107 | Process for the preparation of aliphatic carbonates having a six-membered ring | Hans-Josef Buysch, Gerd Fengler, Karl H. Neumann, Martin Melchiors, Wieland Hovestadt | 1999-01-19 |
| 5808157 | Process for producing aromatic amines | Reinhard Langer, Hans-Josef Buysch, Ursula Pentling | 1998-09-15 |
| 5744663 | Process for preparing cyclopentyl bromide | Heinz Landscheidt, Alexander Klausener, Matthias Stenger | 1998-04-28 |
| 5739393 | Process for the preparation of polymers with recurring succinyl units | Frank Dobert, Torsten Groth, Winfried Joentgen | 1998-04-14 |
| 5679761 | Iminodisuccinate-containing polymers | Lutz Heuer, Winfried Joentgen, Torsten Groth, Hans-Joachim Traenckner, Nikolaus Muller +8 more | 1997-10-21 |
| 5649322 | Process for the preparation of C.sub.1 -C.sub.4 -alkyl nitrites | Heinz Landscheidt, Zoltan Kricsfalussy, Alexander Klausener | 1997-07-15 |
| 5594077 | Process for preparing polymers which contain aspartic acid | Torsten Groth, Winfried Joentgen, Hans-Joachim Traenckner, Dorde Jovcic | 1997-01-14 |
| 5562887 | Purification of alkyl nitrite-containing exhaust gases | Heinz Landscheidt, Kaspar Hallenberger, Alexander Klausener | 1996-10-08 |
| 5550278 | Process for working up the liquid reaction products from the cu-catalysed preparation of dimethyl carbonate | Johann Rechner, Hans-Josef Buysch, Alexander Klausner | 1996-08-27 |
| 5543548 | Process for the preparation of dimethyl carbonate | Heinz Landscheidt, Erich Wolters, Alexander Klausener | 1996-08-06 |
| 5543490 | Process for the preparation of polysuccinimide, polyaspartic acid and salts thereof, and the use of these compounds | Torsten Groth, Winfried Joentgen, Hans W. Linden, Nikolaus Muller, Heinz-Joachim Rother +1 more | 1996-08-06 |
| 5530091 | Process for the production of polysuccinimide or maleic amide acid | Dietrich Gehrmann, Thomas Bamberger, Manfred Giltjes, Winfried Joentgen, Torsten Groth | 1996-06-25 |