Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340752 | Process for the purification of terephthalic acid | Friedrich-August Orlowski | 1982-07-20 |
| 4211506 | Method and apparatus for the metered conveying of pulverulent solids | Julius Klos, Helmut Alfs | 1980-07-08 |