Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302708 | Water-soluble phthalocyanine dyes | Thomas Beck, Werner Russ, Hartmut Springer | 1994-04-12 |
| 5256776 | Water-soluble phthalocyanine dyestuffs, processes for their preparation and their use | Thomas Beck, Werner Russ, Hartmut Springer | 1993-10-26 |