Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588988 | Apparatus for conveying bulk material with vacuum-responsive controlled introduction of a conveying gas | — | 2003-07-08 |
| 6519870 | Method of heating bulk material, especially granular plastic material | Achim Becker | 2003-02-18 |