Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337319 | Self-extinguishing, fine particulate expandable styrene polymers | Josef K. Rigler, Horst Leithauser, Karl Trukenbrod | 1982-06-29 |
| 4335018 | Catalyst for the production of maleic anhydride | Gerhard Franz, Franz Nierlich | 1982-06-15 |