Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6860313 | Method and device for the preparation of foundry sand | Uwe Greissing, Dieter Adelmann, Paul Eirich, Winfried Diem | 2005-03-01 |
| 5694413 | Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods | Paul Eirich | 1997-12-02 |
| 5016361 | Method of extracting liquid from wet material | — | 1991-05-21 |
| 4998678 | Agitator ball mill | — | 1991-03-12 |
| 4997357 | Apparatus for treatment of power station residues | Hubert Eirich, Paul Eirich, Walter Eirich | 1991-03-05 |
| 4514833 | Dispersing machine with container holding device | — | 1985-04-30 |
| 4390285 | Method and apparatus for mixing solids with liquids, in particular for gluing wood chips | Werner Christen, Helmut Muller | 1983-06-28 |
| 4190371 | Apparatus for discontinuous mixing of at least two materials | Helmut Muller | 1980-02-26 |