Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841066 | Preparation of 3-methyl-1-vinylimidazolium chlorides | Hans-Helmut Goertz, Ferdinand Straub, Axel Sanner, Albrecht Kolb, Friedrich Vogel | 1989-06-20 |
| 4818794 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler | 1989-04-04 |
| 4818795 | Polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler | 1989-04-04 |
| 4814102 | Detergents containing oxyalkylated, carboxyl-containing polymers | Richard Baur, Walter Denzinger, Albrecht Eckell, Heinrich Hartmann, Josef Mueller +1 more | 1989-03-21 |