Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570026 | Method for producing phthalic anhylic anhydride according to specifications | Bernd Bessling, Peter Reuter, Peter Michael Lorz, Bernhard Ulrich, Jean Werner Knab +2 more | 2003-05-27 |