Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11692158 | Washing agent with improved optical and rheological properties | Frank Meier, Peter Schmiedel, Daniel Thomas Piorkowski, Kathrin Schnepp-Hentrich | 2023-07-04 |
| 7598217 | Multilayered detergent shaped bodies with viscoelastic phase | Birgit Burg, Dieter Legel, Gerhard Blasey, Peter Schmiedel | 2009-10-06 |
| 6306250 | Method of removing capsule oils from self-copying paper | Bernhard Nellessen, Klaus Hornfeck, Sabine Heinen, Bodo Hilterhaus, Dieter Baumgarten | 2001-10-23 |
| 6289989 | Use of biodegradable alcoxylation products for cleaning boreholes, boring instruments or borings | Heinz Mueller, Claus-Peter Herold, Stefan Podubrin, Andreas Heidbreder | 2001-09-18 |
| 5914006 | Process for controlling the deposit of adhesive impurities from paper material suspensions | Bernhard Nellessen, Rita Koester, Klaus Hornfeck, Peter Daute | 1999-06-22 |
| 5807529 | Process for the production of silicate-based builder granules with increased apparent density | Hans-Friedrich Kruse, Beatrix Kottwitz, Volker Bauer, Joerg Poethkow, Wolfgang Breuer | 1998-09-15 |
| 5540336 | Method of producing iron ore concentrates by froth flotation | Rita Koester | 1996-07-30 |
| 5512134 | Process for removing printing inks from printed wastepaper or from paper circuit waters | Peter Daute, Klaus Hornfeck | 1996-04-30 |
| 5442082 | Alkoxylated compounds produced from epoxidized carboxylic acid derivatives | Guenter Uphues, Uwe Ploog, Peter Daute, Gerhard Stoll | 1995-08-15 |
| 5403440 | Use of compounds containing polyether chains prepared from epoxidized carboxylic acid derivatives for the removal of printing inks from wastepaper | Peter Daute, Klaus Hornfeck | 1995-04-04 |
| 5234545 | Process for regenerating wastepaper in the presence of hydroxysulfonate salts | Bernd Fabry, Maria Liphard | 1993-08-10 |