Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9376729 | Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agents | Christopher Tysoe, Jan-Dieter Wiechmann, Claudia Krüger, Rafael Grosch, Franz Heinzelmann +2 more | 2016-06-28 |
| 7208016 | Chromium-free, waterproof leather | Martin Kleban, Ahmet Kaplan, Henrik Winther | 2007-04-24 |
| 7060363 | Chromium-free, waterproof leather | Martin Kleban, Ahmet Kaplan, Henrik Winther | 2006-06-13 |
| 6576687 | Wet-strength agent with low DCP content | Karl-Rudolf Gassen, Joachim Konig, Karlheinrich Meisel, Fritz Puchner, Horst Zwick | 2003-06-10 |
| 6379751 | Imparting water-repellency with polysiloxanes containing carboxyl groups | Walter Schafer, Gunter Sackmann, Tillmann Hassel, Manfred Schnee, Fritz Novotny | 2002-04-30 |
| 6254644 | Biologically degradable leather | Harro Traubel, Hanns P. Muller, Helmut Reiff, Gerd-Friedrich Renner, Rainhard Koch +1 more | 2001-07-03 |
| 6143132 | Process for imparting wet strength to paper | Harro Traubel, Hans-Josef Laas, Helmut Reiff, Joachim Konig, Harald Faika | 2000-11-07 |
| 6090871 | Paper finishing aid | Jurgen Kopp, Joachim Konig, Harro Traubel, Eckhard Wenderoth, Bernhard Jansen +1 more | 2000-07-18 |
| 6080831 | Water-dispersible polyisocyanates | Bernhard Jansen, Joachim Konig, Bernd Thiele, Rolf-Volker Meyer | 2000-06-27 |
| 5885474 | Use of polyaspartic acid amides as leather auxiliary products | Manfred Schnee, Torsten Groth, Winfried Joentgen, Gerd Schmitz, Harro Traubel +1 more | 1999-03-23 |
| 5739249 | Chlorine-free multifunctional resins for paper finishing | Hans-Josef Laas, Joachim Konig, Helmut Reiff, Joachim Probst, Bruno Bomer +3 more | 1998-04-14 |
| 5718804 | Process for the production of cellulose-containing sheet-like structures which have been given a dry strength and/or wet strength treatment | Bernhard Jansen, Joachim Konig, Peter Nowak | 1998-02-17 |
| 5688371 | Process for fixing disruptive substances in papermaking | Joachim Konig, Jurgen Kopp, Udo-Winfried Hendricks, Peter Nowak | 1997-11-18 |
| 5503714 | Chlorine-free multifunctional resins for paper finishing | Hans-Josef Laas, Joachim Konig, Helmut Reiff, Joachim Probst, Bruno Bomer +3 more | 1996-04-02 |
| 5344620 | Pigment printing on fibre materials | Herbert Wigger, Fritz Puchner | 1994-09-06 |
| 5171476 | Preparation of emulsions or other multiphase formulations | Robert Bloodworth, Gunther Penners, Wolfgang Podszun, Hans Schulze | 1992-12-15 |
| 5093470 | Nitrogen-containing polymeric compounds | Henning Bachem, Georg Schroder, Carlhans Suling, Janos Muszik, Dieter Arlt +2 more | 1992-03-03 |
| 5082527 | Nitrogen-containing polymeric compounds | Henning Bachem, Georg Schroder, Carlhans Suling, Janos Muszik, Dieter Arlt +2 more | 1992-01-21 |
| 4975499 | Polyamidoamine resin from mixture of diamine and polyalkylene polyamine | Henning Bachem, Janos Muszik, Carlhans Suling, Wolf-Dieter Schroer | 1990-12-04 |
| 4952241 | (Meth)acylic acid derivatives containing urethane groups | Wolfgang Podszun, Jens Winkel, Carlhans Suling, Gerhard Klein | 1990-08-28 |
| 4952614 | (Meth)acrylic acid derivatives, containing urethane groups, of tricyclo[5.2.1.0.sup.2.6 ]decanes | Wolfgang Podszun, Jens Winkel | 1990-08-28 |
| 4937144 | Dental fillers | Wolfgang Podszun | 1990-06-26 |
| 4904750 | Ester-urethane derivatives of (meth)-acrylic acid for dental materials | Carlhans Suling, Walter Schafer, Hanns P. Muller, Wolfgang Podszun, Jens Winkel | 1990-02-27 |
| 4902228 | (Meth)-acrylic acid derivatives of triisocyanates in dentistry | Wolfgang Podszun, Carlhans Suling, Jens Winkel | 1990-02-20 |
| 4879402 | (Methyl)acrylic acid derivatives containing urethane groups | Wolfgang Podszun, Jens Winkel, Carlhans Suling, Gerhard Klein | 1989-11-07 |