For the Inventor, By the Inventor

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Iserlohn, Germany

Kirchhoff Witte Gmbh

USPTO Granted Patents = 3

EPO Patents = 1

Trademarks = 4

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

Frank Rohlfs (2 out of 3 patents)

Reiner Wallbaum (1 out of 3 patents)

Johannes Hohenhaus (1 out of 1 patent)

4. Alexander Hingst (1 out of 1 patent)

3 patents: Sort by Forward Citations

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 - Dec 23 2025

3 Patents

#21 in Iserlohn

#8,264 in Germany

Iserlohn, Germany

Kirchhoff Witte Gmbh

Forward Citations = 1

4 inventors:

Frank Rohlfs (2 out of 3 patents)

Reiner Wallbaum (1 out of 3 patents)

Johannes Hohenhaus (1 out of 1 patent)

4. Alexander Hingst (1 out of 1 patent)

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