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Duisburg, Germany

Mannesmann Demag A.g. Wolfgang-Reuter-Platz

USPTO Granted Patents = 2

Forward Citations = 10

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4 inventors (with patents filed for the assignee):

Karlheinz Langlitz (1 out of 13 patents)

Gunter Schmitz (1 out of 11 patents)

Fred Wiggershaus (1 out of 3 patents)

4. Felix Schafer (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4248409 - Steel furnace nozzle arrangement (1981-02-03),

2. 4227679 - Hoist with two or more hoisting units (1980-10-14),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#45 in Duisburg

#10,514 in Germany

Duisburg, Germany

Mannesmann Demag A.g. Wolfgang-Reuter-Platz

Forward Citations = 10

4 inventors:

Karlheinz Langlitz (1 out of 13 patents)

Gunter Schmitz (1 out of 11 patents)

Fred Wiggershaus (1 out of 3 patents)

4. Felix Schafer (1 out of 1 patent)

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