Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5126435 | Process for the preparation of metallisable azo dyes | Werner Huber | 1992-06-30 |
| 4994561 | Process for the preparation of metallizable azo dyes carrying out coupling in an inert gas atmosphere in the presence of an ammonium salt | Werner Huber | 1991-02-19 |