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Dusseldorf, Germany

Korf Engineering Gmbh

USPTO Granted Patents = 31

Forward Citations = 240

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20 inventors (with patents filed for the assignee):

Rolf Hauk (15 out of 25 patents)

Gero Papst (8 out of 8 patents)

Werner Leopold Kepplinger (6 out of 30 patents)

4. Bogdan Vuletic (6 out of 15 patents)

5. Klaus Langner (5 out of 5 patents)

6. Michael Nagl (4 out of 7 patents)

7. Horst Sulzbacher (2 out of 9 patents)

8. Markus Hubig (2 out of 3 patents)

9. Waldemar Mathews (2 out of 3 patents)

10. Leopold Seirlehner (2 out of 2 patents)

11. Ludwig Von Bogdandy (1 out of 5 patents)

12. Hans-Jurgen Klingelhofer (1 out of 1 patent)

13. Kurt Stift (1 out of 6 patents)

14. Ralph Weber (1 out of 5 patents)

15. Bernt Rollinger (1 out of 4 patents)

31 patents: Sort by Forward Citations

1. 4955587 - Arrangement for recovering molten pig iron or steel pre-products from (1990-09-11),

2. 4895593 - Process of recovering molten pig iron or steel pre-products from lumpy (1990-01-23),

3. 4874037 - Apparatus for cooling a hot product gas (1989-10-17),

4. 4861369 - Process for gaining electric energy in addition to producing molten pig (1989-08-29),

5. 4857284 - Process for removing sulphur from the waste gas of a reduction shaft (1989-08-15),

6. 4857105 - Process for producing pig iron using coal degassing reactor to form (1989-08-15),

7. 4854967 - Process for producing carburized sponge iron (1989-08-08),

8. 4851039 - Process for the production of pig iron using cyclone (1989-07-25),

9. 4850574 - Apparatus for cooling and cleaning producer gas and top gas (1989-07-25),

10. 4846449 - Melting gasifier (1989-07-11),

11. 4806154 - Process for the production of pig iron from fine ore using plasma burner (1989-02-21),

12. 4805880 - Fluidized bed arrangement for the production of molten pig iron and (1989-02-21),

13. 4804319 - Process for compacting iron particles and subsequent breaking apart of (1989-02-14),

14. 4793857 - Process for cooling and cleaning producer gas and top gas (1988-12-27),

15. 4790517 - Apparatus for the direct reduction of sulphurous iron ores (1988-12-13),

Korf Engineering GmbH is a leading engineering company that specializes in developing innovative solutions for various industries. With a team of highly skilled engineers and advanced technologies, we provide tailor-made solutions in the fields of automation, robotics, and control systems. Our aim is to deliver high-quality products and services that help our clients optimize their production processes and increase efficiency. Visit our website to learn more about our expertise and find out how we can assist you in achieving your business goals.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

31 Patents

#9 in Dusseldorf

#1,597 in Germany

#20,649 in the World

Dusseldorf, Germany

Korf Engineering Gmbh

Forward Citations = 240

20 inventors:

Rolf Hauk (15 out of 25 patents)

Gero Papst (8 out of 8 patents)

Werner Leopold Kepplinger (6 out of 30 patents)

4. Bogdan Vuletic (6 out of 15 patents)

5. Klaus Langner (5 out of 5 patents)

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