Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009671 | Process for producing a solid, finely divided fuel based on coal | Friedrich H. Franke | 1991-04-23 |
| 4968324 | Process for producing a solid, finely divided fuel based on coal | Friedrich H. Franke | 1990-11-06 |
| 4741278 | Solid fuel and a process for its combustion | Friedrich H. Franke | 1988-05-03 |
| 4501593 | Process for the production of agglomerated fuels | Herbert Mrotzek, Helmut Haukelt, Heinz-Wilhelm Schreckenberg | 1985-02-26 |