Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5889181 | Process for the syntheses of monosulphonated phthalocyanines, naphthobenzoporphyrazines and porphyrins via a modified meerwein reaction | Hasrat Ali, Johan E. Van Lier | 1999-03-30 |