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For the Inventor, By the Inventor

Neuenstein, Germany

Zwn Zahnradwerk Neuenstein Gmbh


USPTO Granted Patents = 1

Forward Citations = 7

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1 inventor (with patents filed for the assignee):

goldMedal Johann Gramberger (1 out of 2 patents)


1 patent:

1. 4940847 - Method for manufacturing a friction ring having a conical or cylindrical (1990-07-10),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#2 in Neuenstein

#15,083 in Germany

...
Neuenstein, Germany

Zwn Zahnradwerk Neuenstein Gmbh

Forward Citations = 7

1 inventor:

goldMedal Johann Gramberger (1 out of 2 patents)

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