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For the Inventor, By the Inventor

Zürich, Switzerland

Hitachi Energy Ltd


USPTO Granted Patents = 251



Trademarks = 23

Forward Citations = 3

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538 inventors (with patents filed for the assignee):

goldMedal Thomas Gradinger (8 out of 32 patents)

silverMedal Lars Knoll (8 out of 16 patents)

bronzeMedal Michele Luvisotto (7 out of 18 patents)

4.  Neethu George (6 out of 12 patents)

5.  Dominik Truessel (6 out of 12 patents)

6.  Jan Czyzewski (6 out of 17 patents)

7.  Georgi Manev (6 out of 7 patents)

8.  Angel Mihaylov (6 out of 6 patents)

9.  Zhibo Pang (5 out of 20 patents)

10.  Peter Sjöberg (5 out of 19 patents)

11.  Milad Maleki (5 out of 7 patents)

12.  Yong Wang (5 out of 7 patents)

13.  Tobias Wikstroem (5 out of 8 patents)

14.  Gianluca Bustreo (5 out of 8 patents)

15.  Uwe Drofenik (5 out of 16 patents)


Core Competencies:
Transformer Technology
Power Transmission
Microgrid Control
Surge Arrester
Electrical Monitoring
Power Semiconductor Devices
Energy Storage Systems
High Voltage Circuit-Breakers
Fault Detection
Insulated Gate Bipolar Transistor
Adaptive Power Control
Liquid-Insulated Components

251 patents:

1. 12525382 - Shunt reactor with auxiliary power (2026-01-13),
2. 12518918 - Component and method for manufacturing insulating spacers (2026-01-06),
3. 12513978 - Manufacturing method for a power semiconductor device and power semiconductor device (2025-12-30),
4. 12513975 - Module comprising a switchable bypass device (2025-12-30),
5. 12513960 - Method for the production of improved SiC-substrates and SiC-epilayers (2025-12-30),
6. 12513949 - Semiconductor device with a side surface having different partial regions (2025-12-30),
7. 12513928 - Bidirectional thyristor device (2025-12-30),
8. 12512670 - Data structure comprising an energy schedule and method for providing a data structure comprising an energy schedule (2025-12-30),
9. 12512413 - Electrical contact arrangement, power semiconductor module, method for manufacturing an electrical contact arrangement and method for manufacturing a power semiconductor module (2025-12-30),
10. 12512259 - Spacer tape, method for manufacturing a winding and winding (2025-12-30),
11. 12510606 - Method for detecting earth faults and frequency converter system with earth fault detection (2025-12-30),
12. 12510434 - Gas pressure monitoring device of gas insulated switchgear, gas pressure monitoring method thereof, and gas leak position identification method (2025-12-30),
13. 12509576 - Stabilized polymer compositions (2025-12-30),
14. 12501668 - Power semiconductor device and a method for producing a power semiconductor device (2025-12-16),
15. 12501666 - Power semiconductor device with an insulated trench gate electrode (2025-12-16),
Hitachi Energy is a global technology leader, driving the transformation of the energy system. With a foundation of 100 years of innovation and technology development, we provide world-class energy solutions for the utility, industry, transportation, and infrastructure sectors. Our mission is to co-create sustainable energy systems that make the world more sustainable and secure for all.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 20 2026

251 Patents

#1 in Zürich

#63 in Switzerland

#3,363 in the World

Zürich, CH
Zürich, Switzerland

Hitachi Energy Ltd

Forward Citations = 3

538 inventors:

goldMedal Thomas Gradinger (8 out of 32 patents)

silverMedal Lars Knoll (8 out of 16 patents)

bronzeMedal Michele Luvisotto (7 out of 18 patents)

4.  Neethu George (6 out of 12 patents)

5.  Dominik Truessel (6 out of 12 patents)

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