Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528185 | Copper complexes, their preparation, their use in controlling plant pests, and agents for such control | Heinz O. Schumacher, Ernst-Heinrich Pommer, Dietrich Schlotterbeck, Gregor Ley | 1985-07-09 |
| 4497880 | Recombination device for storage batteries | Konstantin Ledjeff | 1985-02-05 |
| 4409358 | Copper complexes | Heinz O. Schumacher, Ernst-Heinrich Pommer, Dietrich Schlotterbeck, Gregor Ley | 1983-10-11 |