Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5276248 | Process for the storage and transportation of liquid hydrocarbons | Fritz Engelhardt, Gerlinde Ebert, Heinz Hoffmann, Gerhard Platz | 1994-01-04 |
| 5186720 | Use of products of the reaction of alkenyl-spiro-bislactones with amines as paraffin-dispersants | Michael Feustel | 1993-02-16 |
| 4997912 | Esters of fatty acids, which may be quaternized, from oxalkylated alkylalkylenediamines | Herbert Wirtz, Hermann Hoffmann, Manfred Hofinger, Michael Mitzlaff, Dietrich Wolter | 1991-03-05 |
| 4968415 | Process for selective flotation of phosphorus minerals | Hans Morawietz, Kurt Bauer | 1990-11-06 |
| 4729841 | Alkenylsuccinic acid half-amides as anticorrosion agents | Horst Lorke | 1988-03-08 |
| 4724124 | Use of alkenylsuccinic acid half-amides as anti-corrosion agents | Horst Lorke | 1988-02-09 |
| 4722812 | Salts of alkenylsuccinic acid monoamides | Hermann Hoffmann | 1988-02-02 |
| 4642375 | Process for preparing derivatives of the monoamide of terephthalic acid | — | 1987-02-10 |
| 4609531 | Use of alkenylsuccinic acid half-amides as anticorrosion agents | Horst Lorke | 1986-09-02 |
| 4536339 | Bisamides, a process for their preparation and their use | Helmut Diery, Martin Hille | 1985-08-20 |
| 4482724 | Bisimidazolines | Helmut Diery, Martin Hille | 1984-11-13 |