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For the Inventor, By the Inventor

Iserlohn, Germany

Kirchhoff Witte Gmbh


USPTO Granted Patents = 3


Trademarks = 4

Forward Citations = 2

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4 inventors (with patents filed for the assignee):

goldMedal Frank Rohlfs (2 out of 3 patents)

silverMedal Reiner Wallbaum (1 out of 3 patents)

bronzeMedal Johannes Hohenhaus (1 out of 1 patent)

4.  Alexander Hingst (1 out of 1 patent)


3 patents:

1. 12318893 - Bit holder for holding and screwing a screw with a screw head in a mounting base (2025-06-03),
2. 10857662 - Hand-held tool and method for producing such a hand-held tool (2020-12-08),
3. D747100 - Modular tool box and components therefor (2016-01-12),
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USPTO Data Jan 1 1976 - Sep 15 2026

3 Patents

#21 in Iserlohn

#8,449 in Germany

Iserlohn, DE
Iserlohn, Germany

Kirchhoff Witte Gmbh

Forward Citations = 2

4 inventors:

goldMedal Frank Rohlfs (2 out of 3 patents)

silverMedal Reiner Wallbaum (1 out of 3 patents)

bronzeMedal Johannes Hohenhaus (1 out of 1 patent)

4.  Alexander Hingst (1 out of 1 patent)

Please report any incorrect information to [email protected]
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