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Dusseldorf, Germany

Hartung, Kuhn & Co Maschinenfabrik Gmbh

USPTO Granted Patents = 27

Forward Citations = 331

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20 inventors (with patents filed for the assignee):

Johann G Riecker (10 out of 11 patents)

Fritz Schulte (8 out of 8 patents)

Horst Schroter (6 out of 7 patents)

4. Wolfgang Schrank (3 out of 4 patents)

5. Horst Andreas (2 out of 2 patents)

6. Martin Bender (2 out of 3 patents)

7. Klaus Grohmann (2 out of 2 patents)

8. Franz Goedde (2 out of 2 patents)

9. Walter Goossens (2 out of 2 patents)

10. Georg Mayer (2 out of 3 patents)

11. Richard A Jung (2 out of 2 patents)

12. Johannes Knappstein (1 out of 11 patents)

13. Dietrich Haase (1 out of 1 patent)

14. Lothar Horster (1 out of 1 patent)

15. Gunther Rozas (1 out of 1 patent)

27 patents: Sort by Forward Citations

1. 5384015 - Arrangement for filling coal in oven chambers of a coke oven battery (1995-01-24),

2. 5176489 - Leveller bar for a coke oven block (1993-01-05),

3. 5054529 - Filling car for a oven battery (1991-10-08),

4. 4529483 - Process for utilizing waste heat and producing water gas during the (1985-07-16),

5. 4439274 - Method and chimney for reducing the emission of solid particles (1984-03-27),

6. 4437936 - Process for utilizing waste heat and for obtaining water gas during the (1984-03-20),

7. 4377442 - System for coupling a quenching car to a hood car and for braking the (1983-03-22),

8. 4358343 - Method for quenching coke (1982-11-09),

9. 4312713 - Coke oven gas extraction equipment (1982-01-26),

10. 4273617 - Method and apparatus for quenching heated bulk material (1981-06-16),

11. 4253915 - Pressure rod for a coke discharge apparatus (1981-03-03),

12. 4233118 - Equipment for collecting, extracting and purifying foul gases arising on (1980-11-11),

13. 4204912 - Method and apparatus for purifying gases leaking from coke ovens (1980-05-27),

14. 4198275 - Equipment for extracting and purifying dirty gases arising on the coke (1980-04-15),

15. 4196053 - Equipment for operating coke oven service machines (1980-04-01),

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USPTO Data Jan 1 1976 - Dec 9 2025

27 Patents

#11 in Dusseldorf

#1,760 in Germany

#23,254 in the World

Dusseldorf, Germany

Hartung, Kuhn & Co Maschinenfabrik Gmbh

Forward Citations = 331

20 inventors:

Johann G Riecker (10 out of 11 patents)

Fritz Schulte (8 out of 8 patents)

Horst Schroter (6 out of 7 patents)

4. Wolfgang Schrank (3 out of 4 patents)

5. Horst Andreas (2 out of 2 patents)

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