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EPO Patents = 21

Forward Citations = 2

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44 inventors (with patents filed for the assignee):

Kuno Klein (2 out of 2 patents)

Michal Bubenicek (1 out of 1 patent)

Peter Bohnert (1 out of 1 patent)

4. Fritz Kopf (1 out of 8 patents)

5. Peter Nagy (1 out of 1 patent)

6. Dietmar Adam (1 out of 1 patent)

7. Christoph Adam (1 out of 1 patent)

8. Maximilian Schmitter (1 out of 1 patent)

9. Gerhard Strauch (1 out of 1 patent)

10. Peter Freitag (1 out of 1 patent)

11. Hans Jürgen Schaden (1 out of 1 patent)

12. Alexandra Baumert (1 out of 1 patent)

13. Christian Thienert (1 out of 1 patent)

14. Uwe Hinzmann (1 out of 1 patent)

15. Reiner Otterbein (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12195940 - Vibrator arrangement for improving building soil (2025-01-14),

2. 11774438 - Measurement set-up for a return cement suspension, construction site arrangement having a measurement set-up as well as method and use (2023-10-03),

3. 11255066 - Method for producing a component free of toe pressure (2022-02-22),

4. 10508401 - Depth vibrator with adjustable imbalance (2019-12-17),

5. 10385530 - Method for compaction detection and control when compacting a soil with a deep vibrator (2019-08-20),

6. 10053831 - Process and assembly for determining the radius of a ground element which can be produced by jet grouting (2018-08-21),

7. 9657524 - Drilling apparatus (2017-05-23),

Keller Holding GmbH is a leading industrial group specializing in manufacturing and distributing high-quality industrial products. With a history dating back to 1943, the company has established a strong reputation for innovative solutions and excellent customer service. Keller Holding GmbH operates across various sectors, including automotive, construction, and energy, offering a wide range of products such as bearings, seals, and hydraulic components. The company is known for its commitment to sustainability and continuous improvement in its operations.

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USPTO Data Jan 1 1976 - Dec 16 2025

7 Patents

#2 in Offenbach/Main

#4,802 in Germany

Offenbach/Main, Germany

Keller Holding Gmbh