Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774246 | Method for producing phthalic anhydride | Peter Reuter, Guido Voit | 2004-08-10 |
| 6700000 | Method for producing phthalic anhydride | Herbert Wanjek | 2004-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774246 | Method for producing phthalic anhydride | Peter Reuter, Guido Voit | 2004-08-10 |
| 6700000 | Method for producing phthalic anhydride | Herbert Wanjek | 2004-03-02 |