Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454198 | Porous, powdery polypropylene | Gerhard Ries | 1984-06-12 |
| 4379860 | Porous, powdery polypropylene | Gerhard Ries | 1983-04-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4454198 | Porous, powdery polypropylene | Gerhard Ries | 1984-06-12 |
| 4379860 | Porous, powdery polypropylene | Gerhard Ries | 1983-04-12 |