Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772359 | Production of paper, board and cardboard | Friedrich Linhart, Hans-Juergen Degen, Werner Auhorn, Michael Kroener, Heinrich Hartmann | 1988-09-20 |
| 4739009 | Preparation of bead polymers based on water-soluble ethylenically unsaturated monomers by reverse suspension polymerization | Heinrich Hartmann, Christos Vamvakaris | 1988-04-19 |
| 4581405 | Stabilization of dilute aqueous solutions of high molecular weight homopolymers and copolymers based on water-soluble ethylenically unsaturated compounds | Franz-Dieter Martischius | 1986-04-08 |
| 4520210 | Preparation of concentrated aqueous solutions of quaternization products of tertiary aminoalkyl esters or tertiary aminoalkylamides of acrylic or methacrylic acid | Kurt Schneider, Juergen Hartmann, Heinrich Hartmann | 1985-05-28 |
| 4465599 | Flocculants based on polymers containing water-soluble dialkylaminoneopentyl (meth)acrylates | Hans Burkert, Juergen Hartmann, Dietmar Jung, Heinrich Hartmann, Herbert Spoor | 1984-08-14 |