Issued Patents All Time
Showing 101–108 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369227 | Particulate styrene polymers containing blowing agent | Hans Peter Rath, Heinz Krapf, Isidoor De Grave, Manfred Walter | 1983-01-18 |
| 4367294 | Preparation of polyurethane foams modified with melamine-formaldehyde precondensates | Peter Horn, Matthias Marx, Heinz Weber, Wolfram Weiss, Rolf Wurmb | 1983-01-04 |
| 4311636 | Flame-retardant thermoplastic materials and molded parts therefrom | Walter Himmele, Herbert Naarmann, Klaus Penzien | 1982-01-19 |
| 4298702 | Process for the manufacture of flame retardant polystyrene foams | Klaus Hinselmann, Klaus Halbritter, Walter Rebafka, Heinz Weber | 1981-11-03 |
| 4293656 | Flame retardant polystyrene | Herbert Naarmann, Klaus Penzien | 1981-10-06 |
| 4287258 | Particulate styrene polymers containing blowing agent | Hans Peter Rath, Manfred Walter | 1981-09-01 |
| 4272583 | Flameproofed expandable styrene polymers | Herbert Naarmann, Klaus Penzien, Heinz Weber | 1981-06-09 |
| 4218511 | Self-extinguishing, expandable styrene polymers | Manfred Walter, Karl Stange, Heinz Weber | 1980-08-19 |