For the Inventor, By the Inventor

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Friedrichshafen, Germany

Rt-Filtertechnik Gmbh

USPTO Granted Patents = 15

EPO Patents = 24

Trademarks = 1

Forward Citations = 20

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19 inventors (with patents filed for the assignee):

Gerhard Stehle (8 out of 9 patents)

Marco Bautz (6 out of 6 patents)

Frank Oberli (3 out of 3 patents)

4. Dirk Schönfeld (3 out of 3 patents)

5. Dirk Schoenfeld (2 out of 2 patents)

6. Andreas Steiche (1 out of 1 patent)

7. Robert Kessel (1 out of 1 patent)

8. Alexander Wohlers (1 out of 4 patents)

9. Uwe Fries (1 out of 1 patent)

10. Carsten Grobe (1 out of 1 patent)

11. Michael Otto Sakraschinsky (1 out of 25 patents)

12. John Otto (1 out of 2 patents)

13. Mathias Dieter (1 out of 1 patent)

14. Florentin Van Uffelen (1 out of 2 patents)

15. Alexander Backes (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 12350607 - Filter device (2025-07-08),

2. 12121832 - Filter device (2024-10-22),

3. 12109515 - Filter device (2024-10-08),

4. 11806644 - Filter device (2023-11-07),

5. 11642611 - Filter element (2023-05-09),

6. RE49220 - Filter element (2022-09-26),

7. 11135531 - Filter device (2021-10-05),

8. 10786775 - Separating device (2020-09-29),

9. 10617981 - Filter device for fluids (2020-04-14),

10. 10478759 - Filter element (2019-11-19),

11. 10421031 - Filter device (2019-09-24),

12. 10406457 - Filter device (2019-09-10),

13. 10369499 - Filter device and filter element (2019-08-06),

14. 10213709 - Filter element and hydraulic circuit with such a filter element (2019-02-26),

15. 9849408 - Filter element (2017-12-26),

Rt-filtertechnik GmbH is a leading manufacturer of high-quality filtration systems. With many years of experience in the industry, we provide innovative solutions for various industries including automotive, aerospace, and food processing. Our products are known for their reliability, efficiency, and durability, making us a trusted partner for our clients worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

15 Patents

#9 in Friedrichshafen

#2,769 in Germany

#39,801 in the World

Friedrichshafen, Germany

Rt-Filtertechnik Gmbh

Forward Citations = 20

19 inventors:

Gerhard Stehle (8 out of 9 patents)

Marco Bautz (6 out of 6 patents)

Frank Oberli (3 out of 3 patents)

4. Dirk Schönfeld (3 out of 3 patents)

5. Dirk Schoenfeld (2 out of 2 patents)

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