Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5736076 | Graphite moldings | Ruprecht Meissner, Matthias Irgang, Knut Eger, Peter Weidlich | 1998-04-07 |
| 4916103 | Preparation of a catalytically active composition for the gas phase oxidation of propylene to acrolein and acrylic acid | Hans Martan, Matthias Schwarzmann, Karl-Heinz Boehning | 1990-04-10 |
| 4786402 | Preparation of medicinal white oils and medicinal paraffins | Thomas Anstock, Walter Himmel, Matthias Schwarzmann, Ulrich Lebert, Ansgar Eisenbeis | 1988-11-22 |
| 4726304 | Seed drill | Benno Wiemeyer | 1988-02-23 |
| 4694759 | Seed drill | Bernd Scheufler, Benno Wiemeyer, Johannes Luhrmann | 1987-09-22 |
| 4580507 | Drill for applying seed and fertilizer | Benno Wiemeyer | 1986-04-08 |
| 4580508 | Seed drill | — | 1986-04-08 |
| 4480948 | Machine for applying pellets and powder | — | 1984-11-06 |
| 4422392 | Seed drill with disk-type furrow openers | Benno Wiemeyer | 1983-12-27 |
| 4407207 | Drill having disk furrow openers | — | 1983-10-04 |
| 4366760 | Seed drill | — | 1983-01-04 |
| 4351481 | Centrifugal spreader, especially for granulated fertilizers | — | 1982-09-28 |
| 4275670 | Seed drill mounting arrangement | — | 1981-06-30 |
| 4263858 | Seed and fertilizer drill drive | — | 1981-04-28 |
| 4234129 | Mounting device for agricultural spreading machines | — | 1980-11-18 |
| 4208974 | Seed drill having parallel guide means for the movable shank | Benno Wiemeyer | 1980-06-24 |
| 4202474 | Machine for spreading fertilizer and seed | — | 1980-05-13 |