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For the Inventor, By the Inventor

Neunkirchen, Germany

Hydac Process Technology Gmbh


USPTO Granted Patents = 41

% Expired Patents = 17.1



Trademarks = 1

Forward Citations = 81

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48 inventors (with patents filed for the assignee):

goldMedal Ralf Wnuk (22 out of 24 patents)

silverMedal Bernhard Schlichter (11 out of 11 patents)

bronzeMedal Markus Olschok (7 out of 8 patents)

4.  Norbert Lang (7 out of 9 patents)

5.  Manfred Deutschmeyer (6 out of 6 patents)

6.  Jörg Hermann Gerstner (6 out of 6 patents)

7.  Christian Schindler (5 out of 5 patents)

8.  Sergej Zeller (4 out of 4 patents)

9.  Albert Kaints (3 out of 3 patents)

10.  Hans-Juergen Lingen (3 out of 3 patents)

11.  Sebastian Hrin (3 out of 3 patents)

12.  Thomas Böttcher (3 out of 3 patents)

13.  Martin Winter (3 out of 3 patents)

14.  Stefan Klein (2 out of 2 patents)

15.  Raphael Klein (2 out of 2 patents)


Core Competencies:
Fluid Mixtures
Filter Medium
Filter Apparatus
Phase Separation
Hydraulic System
Gas Conditioning
Impurity Separation
Cyclone Separating
Pressure Vessel
Gas Purification
High-Pressure Applications
Filter Installation

41 patents:

1. 12201933 - Device for the treatment of fluid mixtures (2025-01-21),
2. 12090430 - Method of producing a multilayer filter medium and a filter medium produced in accordance with this method (2024-09-17),
3. 11801463 - Filter apparatus (2023-10-31),
4. 11607630 - Filter device (2023-03-21),
5. 11484819 - Filter device for fluids (2022-11-01),
6. 11458424 - Filter device (2022-10-04),
7. 11325056 - Phase separation device (2022-05-10),
8. 11278826 - Filter apparatus (2022-03-22),
9. 11266928 - Filter device (2022-03-08),
10. 11235264 - Filter apparatus (2022-02-01),
11. 11219847 - Device for treating fluid (2022-01-11),
12. 11058975 - Filtering apparatus (2021-07-13),
13. 11020692 - System for filtering fluids (2021-06-01),
14. 10981092 - Filter device (2021-04-20),
15. 10905980 - Filter device, hydraulic system and backwashing method (2021-02-02),
Company Overview
Hydac Process Technology GmbH, based in Neunkirchen, Germany, specializes in advanced solutions for fluid mixtures treatment and hydraulic systems. The company focuses on developing innovative technologies such as multilayer filter mediums, filter apparatuses, and phase separation devices. Their expertise extends to gas conditioning and impurity separation, ensuring efficient and reliable performance in various industrial applications. Hydac is committed to enhancing operational efficiency through cutting-edge technology in fluid management and separation processes.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Hydac Process Technology Gmbh USPTO Patent Assignee Logo
41 Patents

#4 in Neunkirchen

#1,246 in Germany

#16,706 in the World

Neunkirchen, DE
Neunkirchen, Germany

Hydac Process Technology Gmbh

Forward Citations = 81

48 inventors:

goldMedal Ralf Wnuk (22 out of 24 patents)

silverMedal Bernhard Schlichter (11 out of 11 patents)

bronzeMedal Markus Olschok (7 out of 8 patents)

4.  Norbert Lang (7 out of 9 patents)

5.  Manfred Deutschmeyer (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hydac Process Technology Gmbh. Retrieved from https://idiyas.com/company/hydac-process-technology

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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