Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752303 | Process for producing synthesis gas by partial oxidation of coal-water suspensions | Winfried Materne, Bernard Schleper, Josef Hibbel, Volkmar Schmidt, Ulrich Gerhardus +1 more | 1988-06-21 |
| 4699773 | Process and apparatus for the preparation of ammonium nitrate | Klaus Ulrichs, Joseph Hibbel, Volkmar Schmidt, Heinrich Scheve, Burchard Schulze-Frenking +2 more | 1987-10-13 |
| 4577043 | Process for the preparation of aldehydes | Heinz Kalbfell, Herbert Mercamp | 1986-03-18 |
| 4541840 | Process and device for the discharge of ash-containing fuel residues | Josef Hibbel, Ulrich Gerhardus, Volkmar Schmidt, Heinrich Scheve, Erwin Zerres | 1985-09-17 |
| 4533755 | Process for the hydroformylation of olefins | Boy Cornils, Josef Hibbel, Gunther Kessen, Werner Konkol, Ernst Wiebus +2 more | 1985-08-06 |
| 4526588 | Process for the production of a coal-water suspension which is suitable for use in coal gasification under elevated pressure | Jurgen Lusch, Heinrich Heinen, Volkmar Schmidt, Wolfgang Kolodzey | 1985-07-02 |
| 4523036 | Process for the preparation of aldehydes | Boy Cornils, Josef Hibbel, Joachim Much, Volkmar Schmidt, Ernst Wiebus +1 more | 1985-06-11 |
| 4481015 | Coal-water suspensions, a method for their production, and their use | Jurgen Lusch, Heinrich Heinen, Wolfgang Kolodzey | 1984-11-06 |
| 4425139 | Apparatus for sluicing residues from the pressure system of a pressure gasification tank | Volkmar Schmidt, Heinrich Scheve, Hans Dohren | 1984-01-10 |
| 4381924 | Process for sluicing residues from the pressure system of a pressure gasification tank | Volkmar Schmidt, Heinrich Scheve, Hans Dohren | 1983-05-03 |
| 4310333 | Process and plant for the gasification of solid fuels via partial oxidation | Volkmar Schmidt, Heinrich Scheve, Hans Dohren | 1982-01-12 |