Zhiguo Pan

This inventor holds 25 USPTO granted patents and 2 published patent applications, plus 3 CIPO patents and 6 EPO patents, primarily in Electrical Machines. Top assignees: Abb Schweiz Ag, Direct Drive Systems, Inc., Abb Research Ltd.. Active years: 2009-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Zhiguo Pan. Retrieved from https://idiyas.com/inventor/zhiguo-pan

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

Calculating rank

USPTO Granted Patents = 25 (Patent Applications = 2)

% Patents Active = 80.0

CIPO Patents = 3

EPO Patents = 6 (Patent Applications = 9)

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 150(Granted Patents)

Location History:

Rowland Heights, CA (US) (2009 - 2011)
Cary, NC (US) (2015 - 2022)

Company Filing History:

Direct Drive Systems, Inc.

Baldor Electric Company

patents

6. 1 out of 7

Marici Holdings the Netherlands B.v.

patents

Years Active: 2009-2025

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Areas of Expertise:

Static Transfer Switch

Photovoltaic Optimizer

Electric Machine

Surge Arrester

Inverter Cell

Brushless Machine

AC-DC Conversion

Modular Rectifier

Energy Conversion

Power Distribution

Fan Assembly

Control Systems

25 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12212229 - Static transfer switch with controlled phase angle transfer (2025-01-28),

2. 11258264 - Photovoltaic string optimizer (2022-02-22),

3. 10951080 - Windings for an electric machine (2021-03-16),

4. 10903776 - Industrial electrical machine (2021-01-26),

5. 10748682 - Surge arrester system and circuit breaker system (2020-08-18),

6. 10734834 - Static transfer switch with resonant turn-off (2020-08-04),

7. 10630222 - System having electrical machine and controller (2020-04-21),

8. 10483693 - Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts (2019-11-19),

9. 10436204 - Fan assembly for cooling electric machine and electric machine incorporating same (2019-10-08),

10. 10374543 - Ultracap-based solutions for ride-through of synchronous machine drives (2019-08-06),

11. 10348168 - Inverter cell arrangement for brushless electrical machine (2019-07-09),

12. 10177633 - Multiphase fractional slot concentrated winding machine with end mounted detachable or integrated multiphase series converter circuit (2019-01-08),

13. 9876456 - Brushless electrical machine (2018-01-23),

14. 9755538 - Active AC-link power converter (2017-09-05),

15. 9742331 - Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems (2017-08-22),

Title: Innovations by Zhiguo Pan: Pioneering Technologies in Power Systems

Introduction: Zhiguo Pan, based in Cary, NC, is an accomplished inventor with a remarkable portfolio, holding 21 patents to his name. His work primarily revolves around advancements in electrical power systems, showcasing his ability to innovate for better efficiency and reliability.

Latest Patents: Among his notable inventions, two stand out for their significance in modern power systems. Firstly, the "Static Transfer Switch with Controlled Phase Angle Transfer" allows for alternating power supply to a load from two different sources with minimal disruption during phase transfers. This innovation effectively manages inrush currents, enhancing the stability of power distribution. Secondly, his "Photovoltaic String Optimizer" contributes to the photovoltaic landscape by introducing unique systems and methods that optimize the operation of PV string power systems, which include features for efficient energy capture from multiple solar strings.

Career Highlights: Zhiguo Pan's career includes valuable contributions to prominent companies in the field. Notably, he has worked with ABB Schweiz AG and ABB Technology AG, where his expertise in electrical engineering and innovation has shaped developments in various technology projects.

Collaborations: Throughout his career, Pan has collaborated with esteemed colleagues, including Darren Dale Tremelling and Hongrae Kim. These partnerships have fostered an environment of creativity and problem-solving, leading to the successful development of his many patents.

Conclusion: Zhiguo Pan's contributions to the field of electrical power systems demonstrate his innovative spirit and commitment to advancing technology. With a robust patent portfolio and collaborations with industry leaders, he continues to influence the development of efficient power solutions. His inventions not only provide immediate benefits but also pave the way for future advancements in the industry.

Profile summary based on public USPTO records.