Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714541 | Thermoplastics having a high heat deflection temperature and improved heat stability | Karl-Erwin Piejko, Herbert Eichenauer, Josef Kasbauer, Bernd-Michael Konig | 1998-02-03 |
| 5684163 | Process for the preparation of N-(ortho-alkylphenyl)-imides | Bernd-Michael Konig, Josef Kasbauer, Michael Schwamborn | 1997-11-04 |
| 5679761 | Iminodisuccinate-containing polymers | Lutz Heuer, Winfried Joentgen, Hans-Joachim Traenckner, Nikolaus Muller, Hermann Uhr +8 more | 1997-10-21 |
| 5618910 | Process for decolorizing N-containing polymers | Winfried Joentgen, Lutz Heuer, Gerd Schmitz | 1997-04-08 |
| 5610255 | Process for preparing polysuccinimide and polyaspartic acid | Winfried Joentgen, Nikolaus M uller, Ulrich Liesenfelder | 1997-03-11 |
| 5594077 | Process for preparing polymers which contain aspartic acid | Winfried Joentgen, Paul Wagner, Hans-Joachim Traenckner, Dorde Jovcic | 1997-01-14 |
| 5580355 | Leather tanning agent and standardizing agents for dyestuffs | Winfried Joentgen, Ulrich Muller, Bruno Bomer, Guido Martin Bomer, Harro Traubel | 1996-12-03 |
| 5543490 | Process for the preparation of polysuccinimide, polyaspartic acid and salts thereof, and the use of these compounds | Winfried Joentgen, Hans W. Linden, Nikolaus Muller, Heinz-Joachim Rother, Paul Wagner +1 more | 1996-08-06 |
| 5530091 | Process for the production of polysuccinimide or maleic amide acid | Paul Wagner, Dietrich Gehrmann, Thomas Bamberger, Manfred Giltjes, Winfried Joentgen | 1996-06-25 |
| 5525257 | Composition for water treatment containing polyaspartic acidora derivative thereof and a polcarboxylic acid and methods of using the composition | Roland Kleinstuck, Hermann Sicius, Winfreid Joentgen | 1996-06-11 |
| 5523023 | Water treatment/cleaning composition comprising polyaspartic acid or derivatives thereof and phosphonic acid | Roland Kleinstuck, Hermann Sicius, Winfried Joentgen | 1996-06-04 |
| 5506335 | Sulfonic acid group-containing polyaspartic acid derivatives, use thereof and preparation thereof | Hermann Uhr, Lutz Heuer, Winfried Joentgen, Roland Kleinstuck | 1996-04-09 |
| 5493004 | Process for the preparation of polysuccinimide | Winfried Joentgen, Dorde Jovcic, Paul Wagner, Hans-Joachim Traenckner | 1996-02-20 |
| 5371180 | Process for the preparation of polysuccinimide and polyaspartic acid | Winfried Joentgen, Gunter Boehmke, Gerd Schmitz, Hans-Joachim Traenckner | 1994-12-06 |