Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468349 | Process for the preparation of solutions of cationic azo dyestuffs | Karl Linhart, Gunther Boehmke, Kurt Breig | 1984-08-28 |
| 4432899 | Preparing concentrated azo dye solutions using nitrite salt as both coupling component and diazotizing agent | Karl Linhart, Gunther Boehmke | 1984-02-21 |
| 4402701 | Leather dyeing agents and their preparation: membrame separation of dye mother liquor | Hans-Heinz Molls, Jochen Koll, Gottfried Dick, Reinhold Hornle, Friedrich Kunert | 1983-09-06 |
| 4400321 | Process for the preparation of solutions of cationic polyazo dyestuffs | Karl Linhart, Roderich Raue, Hans-Peter Kuhlthau | 1983-08-23 |
| 4348335 | Process for the partial reduction of polynitrated diaryl compounds | Karl Linhart, Dieter Pawellek | 1982-09-07 |
| 4344766 | Process for the manufacture of preparations with a low dust content | Jurgen Lahrs, Klaus Schubert, Claus Gosling, Dorde Jovcic, Reiner Skerhut | 1982-08-17 |
| 4343936 | Process for the preparation of cationic dyestuffs | Bernd Berger-Lohr, Kurt Breig | 1982-08-10 |
| 4342867 | Process for the preparation of cationic dyestuffs | Bernd Berger-Lohr, Kurt Breig | 1982-08-03 |
| 4281112 | Process for the preparation of cationic dyestuffs | Klaus-Friedrich Lehment, Roderich Raue | 1981-07-28 |