Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772441 | Styrene polymers containing blowing agents | Harro Voss, Klaus Hahn, Isidoor DeGrave | 1988-09-20 |
WM
Walter Manfred
Overall (All Time): #3,959,521 of 4,157,543Top 100%
1
Patents All Time