Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880172 | Roller mill | Otto Heinemann, Norbert Schroder | 1989-11-14 |
| 4597867 | Air-controlled settling apparatus | Otto Heinemann, Armin Supp, Hans-Hermann Nanz, Helmut Thieme, Heinz Rasch | 1986-07-01 |
| 4563271 | Percussion jig | Norbert Schroder, Gunter Milewski, Manfred Neusser, Hermann Dorr, Armin Supp +3 more | 1986-01-07 |
| 4464112 | Apparatus for introducing fine material into a combustion zone | Otto Heinemann, Heinz-Herbert Schmits | 1984-08-07 |