Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675021 | Amphoteric condensates and their use in retanning | Dietrich Lach, Rolf Streicher | 1987-06-23 |
| 4546151 | Oxyalkylated polyamidoamines and their preparation | Richard Baur, Knut Oppenlander, Klaus Barthold | 1985-10-08 |
| 4482713 | Quaternary ammonium salts and their preparation | — | 1984-11-13 |
| 4438094 | Cosmetic formulations containing oxyethylated diphenylamines as sun screen agents | Knut Oppenlaender, Karl Seib, Paul Naegele | 1984-03-20 |
| 4412933 | Color stabilized nonionic surfactants | Erhard Klahr, Wolfgang Trieselt, Wolf-Dieter Balzer, Dieter Stoeckigt | 1983-11-01 |
| 4377387 | Deliming hides | Erwin Hahn, Dietrich Lach, Kurt Schneider, Rolf Streicher | 1983-03-22 |
| 4323689 | 2-Hydroxypropylimidazoles, their preparation, and their use as oil-soluble corrosion inhibitors | Hans-Henning Vogel, Knut Oppenlaender, Richard Baur | 1982-04-06 |
| 4271031 | Color stabilized nonionic surfactants and alkaline cleanser formulations containing these surfactants | Knut Oppenlaender, Johannes Perner, Wolfgang Trieselt | 1981-06-02 |
| 4255310 | Aqueous paints which contain polyglycidylamines as additives | Knut Oppenlaender, Hans J. Geelhaar, Josef Lamprecht, Erich Penzel, Gregor Ley | 1981-03-10 |
| 4239491 | Dyeing and printing of textiles with disperse dyes | Ulrich Baumgarte, Knut Oppenlaender, Harald Schlueter, Harro Petersen, Norbert Greif | 1980-12-16 |