Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886859 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Gockel, Felix Richter, Hans-Jurgen Raubenheimer | 1989-12-12 |
| 4827014 | 2-Hydroxy-3-aminopropionic-n,n-diacetic acid and derivatives thereof, preparation thereof, and detergents containing same | Richard Baur, Felix Richter, Stefan Birnbach, Rolf Fikentscher, Alfred Oftring +1 more | 1989-05-02 |
| 4818794 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Hans-Juergen Raubenheimer | 1989-04-04 |
| 4818795 | Polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, 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, Felix Richter, Wolfgang Trieselt +2 more | 1989-03-28 |
| 4801734 | Amphiphilic 4-alkoxypolyethoxybenzoates, their preparation and their use | Hans-Jakob Kock, Richard Baur, Heino Finkelmann, Markus Schafheutle | 1989-01-31 |