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For the Inventor, By the Inventor

Wupperal, Germany

Herman Hemscheidt Maschinenfrabrik Gmbh & Co.


USPTO Granted Patents = 1

Forward Citations = 3

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1 inventor (with patents filed for the assignee):

goldMedal Josef Welzel (1 out of 7 patents)


1 patent:

1. 4964675 - Method of electro-hydraulic control of longwall mine units (1990-10-23),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in Wupperal

#15,195 in Germany

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Wupperal, Germany

Herman Hemscheidt Maschinenfrabrik Gmbh & Co.

Forward Citations = 3

1 inventor:

goldMedal Josef Welzel (1 out of 7 patents)

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