Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441191 | Dyestuffs containing indolenecyanine disulphonic acid derivatives | Lutz Lehmann | 2002-08-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441191 | Dyestuffs containing indolenecyanine disulphonic acid derivatives | Lutz Lehmann | 2002-08-27 |