Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4319019 | Polyamines containing amide groups | Wolfgang Lehmann, Friedhelm Muller, Knut Hammerstrom, Wilfried Lobach | 1982-03-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4319019 | Polyamines containing amide groups | Wolfgang Lehmann, Friedhelm Muller, Knut Hammerstrom, Wilfried Lobach | 1982-03-09 |