Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873033 | Process for the production of hyperfiltration membranes | Klaus Heckmann, Georg Manecke, Klaus Ring, Helmut Ringsdorf | 1989-10-10 |
| 4758342 | Hyperfiltration membranes having separation layers of monomolecular films of surfactants | Klaus Heckmann, Georg Manecke, Klaus Ring, Helmut Ringsdorf | 1988-07-19 |