Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348514 | Polyamines containing urea groups | Wilfried Lobach, Gunter Kolb, Wolfgang Lehmann, Gunther Cramm, Janos Muszik | 1982-09-07 |
| 4333874 | Cationic triazinylamino azo dyestuffs | Horst Nickel, Peter Mummenhoff | 1982-06-08 |
| 4319019 | Polyamines containing amide groups | Wolfgang Lehmann, Gunther Cramn, Knut Hammerstrom, Wilfried Lobach | 1982-03-09 |