Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348514 | Polyamines containing urea groups | Wilfried Lobach, Gunter Kolb, Gunther Cramm, Friedhelm Muller, Janos Muszik | 1982-09-07 |
| 4319019 | Polyamines containing amide groups | Friedhelm Muller, Gunther Cramn, Knut Hammerstrom, Wilfried Lobach | 1982-03-09 |
| 4315816 | High intensity magnetic field drum separator | Guenter Ries, Klaus-Peter Juengst, Siegfried Foerster, Franz Graf, Karl-Heinz Unkelbach +1 more | 1982-02-16 |