Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4304566 | Process for the dyeing of wool with reactive dyestuffs | Hans-Ulrich von der Eltz, Joachim W. Lehmann, Hans-Peter Maier | 1981-12-08 |
| 4297101 | Process for the dyeing of synthetic polyamide fibers with reactive dyes according to the batchwise exhaustion method | Hans-Ulrich von der Eltz, Joachim W. Lehmann, Hans-Peter Maier | 1981-10-27 |
| 4277246 | Process for the dyeing of cellulose fibers with reactive dyes according to the batchwise exhaustion method | Joachim W. Lehmann, Hans-Peter Maier | 1981-07-07 |