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Hong Kong, China

Astec International Limited

USPTO Granted Patents = 353

% Expired Patents = 17.8

EPO Patents = 15

Trademarks = 7

Forward Citations = 5,912

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307 inventors (with patents filed for the assignee):

Vijay Gangadhar Phadke (38 out of 38 patents)

James Sigamani (25 out of 29 patents)

David A Smith (20 out of 20 patents)

4. Wing Ling Cheng (17 out of 24 patents)

5. Robert Henry Kippley (14 out of 15 patents)

6. Neal George Stewart (11 out of 28 patents)

7. Yancy Fontanilla Boncato (11 out of 11 patents)

8. Arlaindo Vitug Asuncion (10 out of 10 patents)

9. Lin Wang (9 out of 12 patents)

10. Antonio Remetio Soleño (9 out of 10 patents)

11. Kim Ly Kha (9 out of 9 patents)

12. Nathaniel Franco Neri (8 out of 12 patents)

13. Gordon Currie (8 out of 8 patents)

14. David A Cross (8 out of 9 patents)

15. John Faustino Boqueo Begino, Iii (7 out of 10 patents)

Core Competencies:

Multi-Phase Converters

Current Balancing

Surge Protection

Switch-Mode Power Supplies

Transformer Design

Voltage Regulation

Power Measurement

Communication Interfaces

Load Sharing

Inrush Current Limiting

Buck-Boost Converter

Magnetic Components

353 patents: Sort by Forward Citations

1. 12749984 - Multi-phase voltage converter current balancing (2026-09-29),

2. 12340966 - Fuse holder (2025-06-24),

3. 12334815 - Multi-phase interleaved power converters with improved current balancing (2025-06-17),

4. 12101032 - Multi-phase voltage converter current balancing (2024-09-24),

5. D1034484 - Fuse holder (2024-07-09),

6. D1034483 - Fuse holder (2024-07-09),

7. D1034482 - Fuse holder (2024-07-09),

8. D1031673 - Fuse holder (2024-06-18),

9. D1030684 - Fuse holder (2024-06-11),

10. 11990267 - Three-phase magnetics assembly (2024-05-21),

11. 11942870 - Power supply unit with autonomous input power limiting (2024-03-26),

12. 11923779 - Control circuits and methods for regulating output voltages (2024-03-05),

13. 11881348 - Isolated switchmode power supplies having quasi-planar transformers (2024-01-23),

14. 11848616 - Three-phase LLC power supply circuit for high voltage bus input (2023-12-19),

15. 11817969 - Systems, devices and methods for automatically addressing serially connected slave devices (2023-11-14),

Company Overview

Astec International Limited, headquartered in Hong Kong, specializes in power supply technology, focusing on the development and manufacturing of advanced power solutions. The company is recognized for its expertise in multi-phase converters, current balancing, and surge protection, catering to a diverse range of industries. Astec's core technology topics also include switch-mode power supplies, transformer design, voltage regulation, power measurement, and communication interfaces, positioning it as a key player in the power electronics sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

353 Patents

#14 in Hong Kong

#108 in China

#2,590 in the World

Hong Kong, China

Astec International Limited

Forward Citations = 5,912

307 inventors:

Vijay Gangadhar Phadke (38 out of 38 patents)

James Sigamani (25 out of 29 patents)

David A Smith (20 out of 20 patents)

4. Wing Ling Cheng (17 out of 24 patents)

5. Robert Henry Kippley (14 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Astec International Limited. Retrieved from https://idiyas.com/company/astec-international

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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