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For the Inventor, By the Inventor

Amberg, Germany

Deprag Schulz Gmbh U. Co.


USPTO Granted Patents = 3


Trademarks = 1

Forward Citations = 11

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3 inventors (with patents filed for the assignee):

goldMedal Rolf Pfeiffer (3 out of 4 patents)

silverMedal Gerd Zinn (2 out of 3 patents)

bronzeMedal Carsten Rosenkranz (1 out of 1 patent)


3 patents:

1. 11105217 - Turbine generator and method of operating a turbine generator (2021-08-31),
2. 10010928 - Device for connecting structural components, in particularly by means of direct screwing, especially flow hole screwing, or by means of friction welding, and method for connecting structural components, in particular by means of direct screwing or friction welding (2018-07-03),
3. 9901974 - Method for direct screwing of structural components, in particular for flow hole screwing and device for direct screwing of structural components (2018-02-27),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#6 in Amberg

#8,262 in Germany

...
Amberg, Germany

Deprag Schulz Gmbh U. Co.

Forward Citations = 11

3 inventors:

goldMedal Rolf Pfeiffer (3 out of 4 patents)

silverMedal Gerd Zinn (2 out of 3 patents)

bronzeMedal Carsten Rosenkranz (1 out of 1 patent)

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