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For the Inventor, By the Inventor

Sulzbach/Saar, Germany

Hydac Filtertechnik Gmbh


USPTO Granted Patents = 124


Trademarks = 19

Forward Citations = 519

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129 inventors (with patents filed for the assignee):

goldMedal Michael Otto Sakraschinsky (22 out of 25 patents)

silverMedal Norbert Sann (19 out of 20 patents)

bronzeMedal Micha Kreibig (11 out of 14 patents)

4.  Volkmar Klein (11 out of 11 patents)

5.  Werner Wilkendorf (11 out of 12 patents)

6.  Matthias Schwender (10 out of 10 patents)

7.  Richard Eberle (10 out of 12 patents)

8.  Stefan Hennes (10 out of 10 patents)

9.  Harald Mees (10 out of 10 patents)

10.  Edwin Koch (8 out of 8 patents)

11.  Winfried Rüb (8 out of 10 patents)

12.  Markus Dewes (7 out of 7 patents)

13.  Andreas Schmitz (5 out of 5 patents)

14.  Armin Schmidt (5 out of 5 patents)

15.  Viktor Josef Lauer (5 out of 6 patents)


Core Competencies:
Filter Device
Filter Element
Fluid Filtration
Contamination Indicator
Filter Material
Hydraulic Valve
Coalescing Filter
Suction Filtration
Support Structure
Closure Device
Conductive Filter
Sealing Arrangement

124 patents:

1. 12263424 - Filter device together with filter element (2025-04-01),
2. 12257540 - Filter element (2025-03-25),
3. 12201926 - Filter device (2025-01-21),
4. 12109514 - Filter device with an element receptacle having two or more degrees of freedom relative to different axes (2024-10-08),
5. 11376949 - Closure device for a fluid container (2022-07-05),
6. 11305216 - Filter device (2022-04-19),
7. 11033838 - Filter element (2021-06-15),
8. 10926202 - Filter device with coupling element (2021-02-23),
9. 10639565 - Method for producing a filter element (2020-05-05),
10. 10617976 - Filter apparatus (2020-04-14),
11. 10610811 - Filter device with filter element (2020-04-07),
12. 10596493 - Support structure for a filter element (2020-03-24),
13. 10478760 - Filter element with a luminescent marker (2019-11-19),
14. 10335723 - Filter device (2019-07-02),
15. 10335721 - Filter element for a filter device (2019-07-02),
HYDAC FILTERTECHNIK GMBH specializes in designing, manufacturing, and distributing innovative filtration solutions for various industries. Their extensive product range includes hydraulic filters, process filters, coolant filtration systems, oil purification units, and more. With a focus on quality and customer satisfaction, HYDAC FILTERTECHNIK GMBH strives to deliver efficient and reliable filtration solutions to meet the specific needs of their clients worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

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124 Patents

#1 in Sulzbach/Saar

#511 in Germany

#6,263 in the World

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Sulzbach/Saar, Germany

Hydac Filtertechnik Gmbh

Forward Citations = 519

129 inventors:

goldMedal Michael Otto Sakraschinsky (22 out of 25 patents)

silverMedal Norbert Sann (19 out of 20 patents)

bronzeMedal Micha Kreibig (11 out of 14 patents)

4.  Volkmar Klein (11 out of 11 patents)

5.  Werner Wilkendorf (11 out of 12 patents)

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