Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827014 | 2-Hydroxy-3-aminopropionic-n,n-diacetic acid and derivatives thereof, preparation thereof, and detergents containing same | Felix Richter, Stefan Birnbach, Rolf Fikentscher, Alfred Oftring, Ekhard Winkler +1 more | 1989-05-02 |
| 4816553 | Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same | Rolf Fikentscher, Alfred Oftring, Felix Richter, Wolfgang Trieselt, Paul Diessel +2 more | 1989-03-28 |
| 4814102 | Detergents containing oxyalkylated, carboxyl-containing polymers | Walter Denzinger, Albrecht Eckell, Heinrich Hartmann, Josef Mueller, Hans-Juergen Raubenheimer +1 more | 1989-03-21 |
| 4814394 | Polyethers obtainable by reacting alkylolated bis-(4-hydroxyphenyl)-methanes with polyalkylene oxides, and their use as oil demulsifiers | Klaus Barthold, Knut Oppenlaender, Juergen Lasowski | 1989-03-21 |
| 4801734 | Amphiphilic 4-alkoxypolyethoxybenzoates, their preparation and their use | Hans-Jakob Kock, Ekhard Winkler, Heino Finkelmann, Markus Schafheutle | 1989-01-31 |