Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717509 | Reactive fire-protective formulation for rendering polyurethane rigid foam materials flame-resistant and process for preparing same | Walter Buttgens, Utto Kerscher | 1988-01-05 |
| 4301058 | Flameproofing additives for thermoplastic synthetic resins | Utto Kerscher | 1981-11-17 |