Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7833624 | Absorbent polymer structure with improved retention capacity and permeability | Jorg Harren, Andreas Kerkmann, Stephan Ramlow | 2010-11-16 |
| 7335709 | Polymerizate composition and a method for producing the same | Hans-Georg Hartan | 2008-02-26 |
| 7101946 | Water-absorbing polymers having interstitial compounds, a process for their production, and their use | Jorg Harren, Richard Mertens | 2006-09-05 |
| 6911499 | Polymer composition and a method for producing the same | Hans-Georg Hartan | 2005-06-28 |
| 6623848 | Water-absorbing polymers having interstitial compounds, a process for their production, and their use | Jorg Harren, Jörg Issberner, Richard Mertens | 2003-09-23 |
| 6410610 | Method for producing cationic polyelectrolytes | — | 2002-06-25 |
| 5873908 | Alkoxy group containing copolymers and their use in retanning leather | Kurt Dahmen, Richard Mertens, Horst Kilian, Jochen Houben, Thomas Muller | 1999-02-23 |
| 5837789 | Fluid-absorbing polymers, processes used in their production and their application | Dolf Stockhausen, Hans-Georg Hartan, Gerd Jonas, Bernfried Messner, Klaus Pflueger | 1998-11-17 |
| 5672633 | Powdery polymers capable of absorbing aqueous liquids, a process for their production and their use as absorbents | Hans-Georg Hartan | 1997-09-30 |
| 5610220 | Powder-form polymers which absorb, even under pressure, aqueous liquids and blood, a method of producing them and their use in textile articles for body-hygiene applications | Helmut Klimmek | 1997-03-11 |
| 5556930 | Copolymers and their use in the treatment of leather | Leonardus Strijbos, Hans-Bernhard Eikmeier | 1996-09-17 |
| 5548049 | Copolymers of allyliminodiacetic acid with unsaturated carboxylic acids and their use as complexing agents, peroxide stabilizers, builders in washing and cleaning products and dispersing agents | Kurt Dahmen, Richard Mertens | 1996-08-20 |
| 5455284 | Process for the production of water-swellable products using superfines of water-swellable polymers | Kurt Dahmen, Richard Mertens | 1995-10-03 |
| 5408019 | Cross-linked, water-absorbing polymer and its use in the production of hygiene items | Richard Mertens, Kurt Dahmen | 1995-04-18 |
| 5248709 | Process for the agglomeration of water-swellable polymers by means of sinter granulation | — | 1993-09-28 |
| 5229466 | Powdery absorbing material for aqueous liquids based on water-swellable carboxylate polymers | Richard Mertens | 1993-07-20 |
| 4975090 | Process for the preparation of room temperature flowable derivatives of natural fats and oils and their use | Helmut Klimmek | 1990-12-04 |
| 4897225 | Process for the preparation of room temperature flowable derivatives of natural fats and oils and their use | Helmut Klimmek, Dolf Stockhausen | 1990-01-30 |
| 4644083 | Process for the production of N-substituted .alpha.,.beta.-unsaturated carboxylic acid amides | Kurt Dahmen, Erich Kuster, Richard Mertens | 1987-02-17 |