For the Inventor, By the Inventor

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Schwanau, Germany

Herrenknecht

USPTO Granted Patents = 5

Forward Citations = 25

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9 inventors (with patents filed for the assignee):

Tobias Gerhardt (2 out of 7 patents)

Martin Herrenknecht (2 out of 2 patents)

Michael Lubberger (1 out of 5 patents)

4. Werner Suhm (1 out of 2 patents)

5. Hans-Peter Uffmann (1 out of 2 patents)

6. Rainer Griesbaum (1 out of 1 patent)

7. Rolf Heerssen (1 out of 1 patent)

8. Gebhard Lehmann (1 out of 1 patent)

9. Boris Jung (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 12460487 - Drill head for creating a borehole in the ground (2025-11-04),

2. 12270291 - Method for monitoring overburden when advance working in the ground, and advance- working device (2025-04-08),

3. 10364611 - Drill head for expanding a pilot bore in order to create a borehole (2019-07-30),

4. 5437500 - Tunneling machine with center cutter and debris removing means (1995-08-01),

5. 5184918 - Recoverable tunnelling machine (1993-02-09),

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#2 in Schwanau

#6,008 in Germany

Schwanau, Germany

Herrenknecht

Forward Citations = 25

9 inventors:

Tobias Gerhardt (2 out of 7 patents)

Martin Herrenknecht (2 out of 2 patents)

Michael Lubberger (1 out of 5 patents)

4. Werner Suhm (1 out of 2 patents)

5. Hans-Peter Uffmann (1 out of 2 patents)

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