Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352932 | Isoindoline colorants | Wolfgang Lotsch, Reinhard Kemper | 1982-10-05 |
| 4315855 | Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group | — | 1982-02-16 |