Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889655 | Mixtures of fluorescent whitening agents | Heinz Hefti, Kurt Weber, Kurt Burdeska, Dieter Reinehr | 1989-12-26 |
| 4684744 | Stilbene derivatives | Hans R. Meyer, Dieter Reinehr, Kurt Weber | 1987-08-04 |
| 4503100 | Mothproofing and beetleproofing agent for keratinous material and process | Bernardo de Sousa, Werner Schmid | 1985-03-05 |