Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923485 | Process for separating organic constituents from waste gases of the production of aromatic intermediates | Richard C. Grimm, Siegbert Rittner, Herbert Kuckertz, Wilfried Billmann | 1990-05-08 |
| 4686097 | Process for the removal of the residual sulfuric acid from the reaction mixture produced in the sulfoxidation of paraffins | Adam Urschel | 1987-08-11 |
| 4497915 | Molding compositions containing triketoimidazolidine precondensates, their use, and a process for preparing a triketoimidazolidine precondensate composite suitable for this purpose | Kurt Kraft, Jurgen Ritz | 1985-02-05 |
| 4483947 | Molding compositions containing triketoimidazolidine precondensates, their use, and a process for preparing a triketoimidazolidine precondensate composite suitable for this purpose | Franz Jakob | 1984-11-20 |
| 4420572 | Continuous process for the production of highly concentrated spinning solutions of acrylonitrile polymers and a suitable device for this purpose | Helmut Vollmuller, Heinz Bernhard, Harald M. Strobel | 1983-12-13 |