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For the Inventor, By the Inventor

Aachen, Germany

Reinhold Elferich

This inventor holds 60 USPTO granted patents and 7 published patent applications, primarily in Power Conversion Technology (CPC class H02M). Top assignees: Koninklijke Philips Corporation N.v., Signify Holding B.v., Philips Lighting Holding B.v.. Active years: 1997-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Reinhold Elferich. Retrieved from https://idiyas.com/inventor/reinhold-elferich

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

USPTO Granted Patents = 60 

% Patents Active = 61.7

Average Co-Inventor Count = 2.1

ph-index = 9

Forward Citations = 1,572(Granted Patents)

Forward Citations (Not Self Cited) = 1,540(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Eindhoven, DE (2016)
  • Aachen, NL (2016)
  • Eindhoven, NL (2018 - 2020)
  • Aachen, DE (1997 - 2024)

Company Filing History:

goldMedal26 out of 21,885 
 
Koninklijke Philips Corporation N.v.
 patents
silverMedal19 out of 1,985 
 
Signify Holding B.v.
 patents
bronzeMedal9 out of 853 
 
Philips Lighting Holding B.v.
 patents
4. 4 out of 5,322 
 
Nxp B.v.
 patents
5. 1 out of 60 
 
Koninklijke Phillips Electronics N.v.
 patents
6. 1 out of 14,087 
 
U.S. Philips Corporation
 patents

Years Active: 1997-2026

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Areas of Expertise:
Lighting Circuit
Resonant Inverter
LED Driver
Power Factor Correction
DC/DC Converter
Synchronous Converter
Half Bridge Converter
Active Capacitor Circuit
Feedback Circuit
Pulsed Power Supply
Heat Pipe Cooling
Electroactive Polymer
60 patents (USPTO):Explore Patents
1. 12588122 - Lighting circuit (2026-03-24),
2. 12439487 - HF AC driving a string of antiparallel laser diodes and LEDS (2025-10-07),
3. 12324067 - Lamp driver with voltage sensing (2025-06-03),
4. 12302463 - Color tunable laser based source (2025-05-13),
5. 12185438 - Resonant inverter and conversion method (2024-12-31),
6. 11973419 - Inverter circuit and method, for example for use in power factor correction (2024-04-30),
7. 11843324 - Resonant inverter and conversion method (2023-12-12),
8. 11397693 - Peripheral device, system including the peripheral device and method (2022-07-26),
9. 11322286 - Split transformer assembly (2022-05-03),
10. 10879791 - DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methods (2020-12-29),
11. 10734889 - DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methods (2020-08-04),
12. 10680510 - AC/DC PFC converter using a half bridge resonant converter, and corresponding conversion method (2020-06-09),
13. 10622894 - Synchronous converter (2020-04-14),
14. 10454382 - Half bridge resonant converters, circuits using them, and corresponding control methods (2019-10-22),
15. 10447148 - DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methods (2019-10-15),

Title: Reinhold Elferich: Pioneering Innovations in Electrical Engineering

Introduction: Reinhold Elferich, a distinguished inventor based in Aachen, Germany, has made significant contributions to the field of electrical engineering with a remarkable portfolio of 55 patents. His innovative work has had a profound impact on various industries, particularly in the development of inverter circuits and conversion methods for power factor correction.

Latest Patents: Among his latest patents is an Inverter circuit and method designed for power factor correction applications. This cutting-edge technology utilizes bidirectional switches and a resonant circuit to efficiently invert AC input signals. Additionally, Reinhold Elferich's Resonant inverter and conversion method patent showcases his expertise in resonant converter systems, with a focus on enhancing control strategies for improved efficiency.

Career Highlights: Reinhold Elferich has garnered extensive experience working with leading companies in the sector, including Koninklijke Philips Corporation N.V. and Signify Holding B.V. His depth of knowledge and innovative spirit have been instrumental in shaping the landscape of modern electrical engineering practices.

Collaborations: Throughout his career, Reinhold Elferich has collaborated closely with industry peers such as David Llewellyn John and Toni Lopez. These partnerships have not only fostered creativity and knowledge exchange but have also led to groundbreaking advancements in the field of power electronics.

Conclusion: In conclusion, Reinhold Elferich stands as a visionary inventor whose groundbreaking patents and collaborations have propelled the field of electrical engineering forward. His commitment to innovation and excellence continues to inspire professionals in the industry, making him a true pioneer in the realm of technological advancements.

Profile summary based on public USPTO records.
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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