Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6900260 | Use of associative thickeners based on polyurethane and/or dipropylene glycol monoalkyl ethers in colored and/or decorative effect multi-layered lacquers | Ines Mangels, Udo Nenner, Egon Wegner, Ekkehard Sapper, Nicola Zarse | 2005-05-31 |
| 6797771 | Aqueous composition that can be hardened physically, thermally or thermally and with actinic radiation and the derivatives and production thereof | Ekkehard Sapper, Anne Hupp, Egon Wegner, Willi Vesper, Jörg Schwarz | 2004-09-28 |
| 4956096 | Process for removing from electrocoating baths impurities which cause surface defects | Klaus Arlt, Theodora Dirking, Hans-Joachim Streitberger | 1990-09-11 |