Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204453 | Process for the preparation of 1:2 metal complex azo compounds by carrying out diazotization and coupling in the presence of a metal donor | Bernard Chambon, Horst Jager, Alois Puntener | 1993-04-20 |
| 4874847 | Process for the diazotisation of primary aromatic amines which are sparingly soluble in water | Ernst Burgi, Vladimir Arnold, Ferenc Rakoczi | 1989-10-17 |
| 4855410 | Process for the preparation of fibre-reactive azo compounds containing a phenylenediamine diazo component | Charles Wilhelm | 1989-08-08 |
| 4730037 | Process for the application of IR spectroscopy for modulation and monitoring of diazonium ion concentration | Ferenc Rakoczi | 1988-03-08 |