Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5569758 | Preparation of metal-free phthalocyanines | Ingo Klopp, Peter B ottcher, Ulrich Frick | 1996-10-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5569758 | Preparation of metal-free phthalocyanines | Ingo Klopp, Peter B ottcher, Ulrich Frick | 1996-10-29 |