Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672392 | Preparation of recording materials for inkjet printers | Arnold De Clercq, Ulrich Riebeling | 1997-09-30 |
| 4596581 | Carboxyl- and amino-containing copolymer for after-tanning mineral tanned leather | Dietrich Lach, Rolf Streicher | 1986-06-24 |