Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284812 | Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity | Udo Rotermund, Renate Hempel, Holger Seifert | 2001-09-04 |
| 6199593 | Production of pipes insulated with foams | — | 2001-03-13 |
| 6087409 | Production of rigid polyurethane foams | Bernhard Naber, Michael Gassan | 2000-07-11 |
| 6010650 | Production of pipes insulated with foams | — | 2000-01-04 |