Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8895791 | Method of regenerating ruthenium catalysts suitable for hydrogenation | Jochem Henkelmann, Michael Becker, Daniela Mirk, Thomas Schäfer | 2014-11-25 |
| 8598060 | Method of regenerating ruthenium catalysts for the ring hydrogenation of phthalates | Jochem Henkelmann, Michael Becker, Thomas Schäfer | 2013-12-03 |
| 5073269 | Preparation of water-soluble copolymers of maleic acid and use thereof as water treatment agents | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Hans-Juergen Raubenheimer, Ekhard Winkler | 1991-12-17 |
| 5019296 | Serine-N,N-diacetic acid and derivatives as complexing agents and detergents containing same | Richard Baur, Stefan Birnbach, Rolf Fikentscher, Alfred Oftring, Ekhard Winkler | 1991-05-28 |
| 4973730 | Preparation of serine-N,N-diacetic acid and derivatives as complexing agents and detergents containing same | Richard Baur, Stefan Birnbach, Rolf Fikentscher, Alfred Oftring, Ekhard Winkler | 1990-11-27 |
| 4886859 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Gockel, Hans-Jurgen Raubenheimer, Ekhard Winkler | 1989-12-12 |
| 4827014 | 2-Hydroxy-3-aminopropionic-n,n-diacetic acid and derivatives thereof, preparation thereof, and detergents containing same | Richard Baur, Stefan Birnbach, Rolf Fikentscher, Alfred Oftring, Ekhard Winkler +1 more | 1989-05-02 |
| 4818794 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Hans-Juergen Raubenheimer, Ekhard Winkler | 1989-04-04 |
| 4818795 | Polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Ekhard Winkler, Hans-Juergen Raubenheimer | 1989-04-04 |
| 4816553 | Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same | Richard Baur, Rolf Fikentscher, Alfred Oftring, Wolfgang Trieselt, Paul Diessel +2 more | 1989-03-28 |