Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797435 | Use of 3-benzalphthalides as UV stabilizers for thermoplastic, aromatic polyesters, polycarbonates and polyester carbonates | Thomas Scholl, Volker Serini, Dietrich Rathmann, Klaus Kircher | 1989-01-10 |