Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299751 | Cold-setting, polyurethane-based molding material binder | — | 1981-11-10 |
| 4231914 | Polyurethane-based binder system for the production of casting molds or cores | Karl H. Bruning | 1980-11-04 |