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For the Inventor, By the Inventor

Sulzbach, Germany

Hydac Fluidtechnik Gmbh


USPTO Granted Patents = 74

% Expired Patents = 20.3


Trademarks = 1

Forward Citations = 221

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56 inventors (with patents filed for the assignee):

goldMedal Peter Bruck (42 out of 43 patents)

silverMedal Frank Schulz (21 out of 21 patents)

bronzeMedal Markus Bill (19 out of 19 patents)

4.  Philipp Hilzendegen (10 out of 10 patents)

5.  Gerd Schneider (6 out of 6 patents)

6.  Christian Groh (5 out of 8 patents)

7.  Thorsten Hillesheim (5 out of 5 patents)

8.  Alois Hoffmann (4 out of 4 patents)

9.  Martin Grill (3 out of 3 patents)

10.  Hermann Albert (3 out of 3 patents)

11.  Lennard Günther (3 out of 3 patents)

12.  Jan Frederik Lübbert (3 out of 3 patents)

13.  Andre Jäger (3 out of 3 patents)

14.  Christian Stauch (2 out of 3 patents)

15.  Maximilian Felix Hess (2 out of 2 patents)


Core Competencies:
Hydraulic Control Valves
Pressure Control Valves
Pump Devices
Energy Efficiency
Electromagnetic Valves
Flow Control Valves
Directional Control Valves
Pressure Compensators
Modular Valve Systems
Solenoid Valves
Hydraulic Accumulators
Cooling Devices

74 patents:

1. 12669135 - Pilot-control electromagnetic valve (2026-06-30),
2. 12650135 - Volume follow supply (2026-06-09),
3. 12607207 - Valve (2026-04-21),
4. 12607174 - Pump device (2026-04-21),
5. 12577965 - Electromagnetic pilot-operated proportional pressure control valve (2026-03-17),
6. 12540613 - Test device (2026-02-03),
7. 12534055 - System for braking a displacement-controlled drive system (2026-01-27),
8. 12378977 - Valve for providing a fluid-conducting connection between a pressure supply port and a consumer port or between the consumer port and a return port (2025-08-05),
9. 12247556 - Pump device (2025-03-11),
10. 12241484 - Valve (2025-03-04),
11. 12104711 - Valve device (2024-10-01),
12. 12027311 - Actuating device (2024-07-02),
13. 11442478 - Pressure control device (2022-09-13),
14. 11313387 - System for charging and discharging at least one hydraulic accumulator (2022-04-26),
15. 11307599 - Device and valve for flow force compensation (2022-04-19),
HYDAC FLUIDTECHNIK GMBH is a leading manufacturer of hydraulic components and systems. With a wide range of products including filters, accumulators, valves, pumps, and more, HYDAC provides innovative solutions for various industries such as construction, agriculture, and industrial automation. Their high-quality products are designed to optimize performance, ensure reliability, and reduce downtime. For over 50 years, HYDAC has been committed to meeting customer demands and delivering excellent hydraulic solutions worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Hydac Fluidtechnik Gmbh
74 Patents

#2 in Sulzbach

#775 in Germany

#10,107 in the World

Sulzbach, DE
Sulzbach, Germany

Hydac Fluidtechnik Gmbh

Forward Citations = 221

56 inventors:

goldMedal Peter Bruck (42 out of 43 patents)

silverMedal Frank Schulz (21 out of 21 patents)

bronzeMedal Markus Bill (19 out of 19 patents)

4.  Philipp Hilzendegen (10 out of 10 patents)

5.  Gerd Schneider (6 out of 6 patents)

Please report any incorrect information to [email protected]
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