Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288923 | Preparation of ethers of diphenols | Gerhard Fennhoff, Wolfgang Jacob | 1994-02-22 |
| 5214072 | Purification of polycarbonate, polyester carbonate or polyester waste | Gerhard Fennhoff, Wolfgang Jakob | 1993-05-25 |
| 5151452 | Purification of polycarbonate and polyester carbonate waste | Gerhard Fennhoff, Wolfgang Jakob, Dieter Freitag | 1992-09-29 |