Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657133 | Rigid polyurethane foams | Holger Seifert, Johann Klassen, Werner Wiegmann, Guenter Matzke | 2017-05-23 |
LR
Louis Du Rieu
Overall (All Time): #2,946,301 of 4,157,543Top 75%
1
Patents All Time