Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6593385 | Halogen-free, pentane-blown, flame-retardant rigid polyurethane foam and a process for its production | Wilfried Krieger | 2003-07-15 |
| 6518325 | Halogen-free, water-blown, flame-retardant rigid polyurethane foam and a process for its production | Wilfried Krieger | 2003-02-11 |
| 6472448 | Halogen-free, flame-retardant rigid polyurethane foam and a process for its production | Wilfried Krieger | 2002-10-29 |