Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4495224 | Method for preparing improved molding materials from coated fine particulate expandable styrene polymers and application of the coated products | Josef K. Rigler, Horst Leithauser | 1985-01-22 |
| 4281036 | Method for coating fine particulate expandable styrene polymers | Horst Leithauser, Karl Trukenbrod | 1981-07-28 |