Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888412 | Tanning assistant | Klaus Ebel, Wolfgang Reuther, Dietrich Lach, Rolf Streicher, Ortwin Schaffer | 1989-12-19 |
| 4827014 | 2-Hydroxy-3-aminopropionic-n,n-diacetic acid and derivatives thereof, preparation thereof, and detergents containing same | Richard Baur, Felix Richter, Stefan Birnbach, Alfred Oftring, Ekhard Winkler +1 more | 1989-05-02 |
| 4816553 | Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same | Richard Baur, Alfred Oftring, Felix Richter, Wolfgang Trieselt, Paul Diessel +2 more | 1989-03-28 |