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For the Inventor, By the Inventor

Siegen-Geisweid, Germany

Sag Siegener Ag


USPTO Granted Patents = 2

Forward Citations = 10

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2 inventors (with patents filed for the assignee):

goldMedal Frohmut Vollhardt (2 out of 21 patents)

silverMedal Werner Ackermann (2 out of 2 patents)


2 patents:

1. 4325693 - Device for heating open melting baths (1982-04-20),
2. 4207065 - Device for heating open melting baths, such as galvanizing baths, (1980-06-10),
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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#1 in Siegen-Geisweid

#10,513 in Germany

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Siegen-Geisweid, Germany

Sag Siegener Ag

Forward Citations = 10

2 inventors:

goldMedal Frohmut Vollhardt (2 out of 21 patents)

silverMedal Werner Ackermann (2 out of 2 patents)

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