Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643771 | Production of water-repellent moldings from plaster | Hans-Horst Steinbach | 1987-02-17 |
| 4614633 | Release agent for polyurethane molding compositions | Hans-Horst Steinbach | 1986-09-30 |