Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4609512 | Process for controlling bead size in the manufacture of expandable styrene polymers by suspension polymerization | Josef K. Rigler, Horst Leithauser | 1986-09-02 |
| 4517314 | Fine particulate, expandable styrene polymers suitable for the production of rapidly mold-ejected cellular bodies | Josef K. Rigler | 1985-05-14 |
| 4497912 | Fine particulate, expandable styrene polymers suitable for the production of rapidly mold-ejected cellular bodies | Josef K. Rigler | 1985-02-05 |