Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496313 | Method of calcining minerals containing heat-value components | Gerhard Reuter, Rudiger Schmidt | 1985-01-29 |
| 4461645 | Method of and apparatus for the cooling of white cement clinker | Gunter Roth, Dieter Frank, Ludwig Muller, Wilhelm Grassmann | 1984-07-24 |
| 4353750 | Method of firing carbonate-containing minerals | — | 1982-10-12 |
| 4248639 | Method of calcining sinterable materials to form cement clinker or the like | — | 1981-02-03 |
| 4217092 | Method and device for sintering material of different granular size | Dieter Frank | 1980-08-12 |