Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976888 | Antifoam based on oil-in-water emulsion | Arnold De Clercq, Hans-Juergen Degen, Jaroslav Melzer | 1990-12-11 |
| 4931062 | Hydrophobization of leather, pelts and leather substitute materials with carboxyl-containing polysiloxanes | Herbert Bay, Guenter Eckert | 1990-06-05 |
| 4664844 | Antifoams based on oil-in-water emulsions | Jaroslav Melzer | 1987-05-12 |
| 4474916 | Concentrated aqueous solutions of mixtures of organic complexing agents and dispersing agents based on polymeric aliphatic carboxylic acids | Werner Streit, Dieter Bassing | 1984-10-02 |