Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11781098 | Method for the treatment of wood particles for the production of alcoholic beverages and their use and an apparatus for their use | — | 2023-10-10 |
| 11773356 | Method for the treatment of wood particles for the production of alcoholic beverages and their use and an apparatus for their use | — | 2023-10-03 |
| 6207780 | Interpolymers of unsaturated carboxylic acids and unsaturated sulfur acids | Helmut Klimmek, Frank Krause, Matthias Berghahn | 2001-03-27 |
| 5837789 | Fluid-absorbing polymers, processes used in their production and their application | Hans-Georg Hartan, Helmut Brehm, Gerd Jonas, Bernfried Messner, Klaus Pflueger | 1998-11-17 |
| 5830956 | Biodegradable copolymers, methods of producing them and their use | Frank Krause, Helmut Klimmek | 1998-11-03 |
| 5482636 | Process for the quaternization of triethanolamine fatty acid esters and imidazolinamides and the use of the reaction mixtures in laundry softener compositions | Michael Brock, Peter Hardt, Helmut Klimmek | 1996-01-09 |
| 5443631 | Process for the quaternization of triethanolamine fatty acid esters and imidazolinamides and the use of the reaction mixtures in laundry softener compositions | Michael Brock, Peter Hardt, Helmut Klimmek | 1995-08-22 |
| 5026690 | Antiviral agent | Joachim Kresken, Bernd Komp | 1991-06-25 |
| 4980437 | Acrylic copolymers for re-tanning | Manfred Kaussen, Hans-Georg Hartan, Alfons Landscheidt | 1990-12-25 |
| 4897225 | Process for the preparation of room temperature flowable derivatives of natural fats and oils and their use | Helmut Brehm, Helmut Klimmek | 1990-01-30 |
| 4813968 | Retanning process | Manfred Kaussen, Hans-Georg Hartan, Alfons Landscheidt | 1989-03-21 |
| 4774131 | Process for the production of polyurethane-coated textile surfaces, polyurethane-coated textile surfaces and their use in the production of breathable and waterproof clothing | Kurt Dahmen, Karl-Heinz Stukenbrock | 1988-09-27 |
| 4631063 | Process for finish dressing minerally dressed leathers or those dressed by a combined method, using polymer dressings | Rudolf Nowak, Miroslav Chmelir, Manfred Kaussen, Kurt Dahmen | 1986-12-23 |
| 4318705 | Process for improving the lightfastness of conventionally dyed leather | Rudolf Nowak, Kurt Dahmen | 1982-03-09 |
| 4256800 | Antistatic agents for coating the backing of carpets and other flat textile articles | Reinmar Peppmoller | 1981-03-17 |