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Goslar, Germany

Preussag Aktiengesellschaft Metall

USPTO Granted Patents = 8

Forward Citations = 52

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16 inventors (with patents filed for the assignee):

Hans Wilhelm Wieking (2 out of 2 patents)

Karl Ehlers (2 out of 2 patents)

Klaus Janssen (2 out of 3 patents)

4. Kunibert Hanusch (2 out of 2 patents)

5. Helmut Winnacker (1 out of 14 patents)

6. Gunter Bartels (1 out of 1 patent)

7. Horst Immenroth (1 out of 1 patent)

8. Gunter Heyer (1 out of 1 patent)

9. Jurgen Meier (1 out of 1 patent)

10. Siegfried Frank (1 out of 1 patent)

11. Wolfang Krajewski (1 out of 1 patent)

12. Friedhart Knolle (1 out of 1 patent)

13. Erich Kirsch (1 out of 1 patent)

14. Heribert Broicher (1 out of 1 patent)

15. Arthur Zydek (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 4745276 - Device for the detection of fluorescent substances on the surface of the (1988-05-17),

2. 4737351 - Process for the recovery of tin (1988-04-12),

3. 4666686 - Process for the fluid-fluid extraction of gallium, germanium or indium (1987-05-19),

4. 4666347 - Hydraulic conveying of solids (1987-05-19),

5. 4468154 - Method of disposal or temporary storage of waste material (1984-08-28),

6. 4115220 - Process for the preparation of high purity antimony (1978-09-19),

7. 4077799 - Method and apparatus of refining crude cadmium (1978-03-07),

8. 4010937 - Method and apparatus of refining crude cadmium (1977-03-08),

Preussag Aktiengesellschaft Metall is a leading global supplier of metal products and services. With a strong focus on quality and customer satisfaction, we provide a wide range of metal products including steel, aluminum, copper, and alloys. Our expertise in metallurgy and commitment to excellence have made us a trusted partner for industries ranging from automotive to construction.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

8 Patents

#3 in Goslar

#4,358 in Germany

Goslar, Germany

Preussag Aktiengesellschaft Metall

Forward Citations = 52

16 inventors:

Hans Wilhelm Wieking (2 out of 2 patents)

Karl Ehlers (2 out of 2 patents)

Klaus Janssen (2 out of 3 patents)

4. Kunibert Hanusch (2 out of 2 patents)

5. Helmut Winnacker (1 out of 14 patents)

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