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Krefeld, Germany

Stockhausen Gmbh & Co Kg

USPTO Granted Patents = 69

Trademarks = 17

Forward Citations = 1,807

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115 inventors (with patents filed for the assignee):

Kurt Dahmen (11 out of 40 patents)

Richard Mertens (10 out of 29 patents)

Jochen Houben (7 out of 10 patents)

4. Bernfried A Messner (7 out of 17 patents)

5. Hans-Georg Hartan (5 out of 15 patents)

6. Frank Krause (5 out of 15 patents)

7. Helmut Klimmek (5 out of 19 patents)

8. Marcel Veeger (4 out of 17 patents)

9. Whei-Neen Hsu (4 out of 11 patents)

10. Helmut Brehm (4 out of 19 patents)

11. Andreas Klotz (4 out of 4 patents)

12. Fang Sun (4 out of 5 patents)

13. Miroslav Chmelir (4 out of 13 patents)

14. Heather S Jones (4 out of 4 patents)

15. Helmut Brueggemann (4 out of 4 patents)

Core Competencies:

Superabsorbent Polymers

Water-Absorbing Polymers

Aqueous Sludge Treatment

Cellulose Shaped Bodies

Skin Care Agents

Cationic Polyelectrolytes

Polymer Dispersions

Absorbent Materials

Crystallization Purification

Grafting Lignin

Environmental Compatibility

Active Substance Compositions

69 patents: Sort by Forward Citations

1. 7811458 - Method for treating aqueous sludge, material so produced and the use thereof (2010-10-12),

2. 7553423 - Method for treating aqueous sludge, material so produced and the use thereof (2009-06-30),

3. 7241452 - Skin and hair care agents (2007-07-10),

4. 7078560 - Method for preparing amino alkyl(meth)acrylates (2006-07-18),

5. 7052775 - Method for producing cellulose shaped bodies with super-absorbent properties (2006-05-30),

6. 7030199 - Method for producing water-soluble or water-swellable polymerizates with a very low residual monomer content, products produced according to this method and the use thereof (2006-04-18),

7. 6979748 - Method for preparing amino alkyl(meth)acrylates (2005-12-27),

8. 6958429 - Water-absorbing polymers with supramolecular hollow molecules, method for producing them and use of the same (2005-10-25),

9. 6946189 - Substrate with super-absorbent material, method for manufacture thereof and use (2005-09-20),

10. 6911572 - Water-absorbing polymers having supramolecular hollow molecules, method for producing them and use of the same (2005-06-28),

11. 6906131 - Cellulose material with improved absorbency (2005-06-14),

12. 6861469 - Water-in-oil polymer dispersions with improved environmental compatibility (2005-03-01),

13. 6841229 - Superabsorbent polymers having delayed water absorption characteristics (2005-01-11),

14. 6831142 - Pulverulent, crosslinked polymers which absorb aqueous liquids and blood (2004-12-14),

15. 6743391 - Superabsorbent polymers having delayed water absorption characteristics (2004-06-01),

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

69 Patents

#6 in Krefeld

#841 in Germany

#10,337 in the World

Krefeld, Germany

Stockhausen Gmbh & Co Kg

Forward Citations = 1,807

115 inventors:

Kurt Dahmen (11 out of 40 patents)

Richard Mertens (10 out of 29 patents)

Jochen Houben (7 out of 10 patents)

4. Bernfried A Messner (7 out of 17 patents)

5. Hans-Georg Hartan (5 out of 15 patents)

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