Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344767 | Process for coloring linear polyesters in the melt | Gerhard Umsonst, Hans P. Kolliker | 1982-08-17 |
| 4341896 | 1-Hydroxy-4-heteroarylaminoanthraquinones | — | 1982-07-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344767 | Process for coloring linear polyesters in the melt | Gerhard Umsonst, Hans P. Kolliker | 1982-08-17 |
| 4341896 | 1-Hydroxy-4-heteroarylaminoanthraquinones | — | 1982-07-27 |