% Expired Patents = 28.6

Forward Citations = 40

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6 inventors (with patents filed for the assignee):

Chih-Ming Huang (3 out of 3 patents)

Yu-Kuang Tseng (2 out of 5 patents)

Ching-Lung Tsai (1 out of 4 patents)

4. Chuo-Han Tsai (1 out of 1 patent)

5. Shih-Chuan Lee (1 out of 1 patent)

6. Chieh-Hui Hsu (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12474542 - Lens device and lens set moving mechanism thereof (2025-11-18),

2. 11747587 - Voice coil motor devices for auto focusing or zooming (2023-09-05),

3. 9165589 - Voice coil motor with lateral attraction force (2015-10-20),

4. 8558418 - Voice coil motor (2013-10-15),

5. 7932645 - Voice coil motor with surface coil (2011-04-26),

6. 7400068 - Voice coil motor apparatus (2008-07-15),

7. 7309932 - Voice coil motor apparatus for positioning (2007-12-18),

Company Overview

Vasstek International Corporation is a leading provider of innovative IT solutions for businesses worldwide. With a focus on cutting-edge technology and exceptional customer service, Vasstek offers a wide range of services including software development, IT consulting, and web design. Our team of experts is dedicated to helping clients reach their full potential through customized solutions and strategic planning. Contact us today to see how Vasstek can help your business thrive in the digital age.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#291 in Hsinchu

#1,849 in Taiwan

Hsinchu, Taiwan

Vasstek International Corporation

Forward Citations = 40

6 inventors:

Chih-Ming Huang (3 out of 3 patents)

Yu-Kuang Tseng (2 out of 5 patents)

Ching-Lung Tsai (1 out of 4 patents)

4. Chuo-Han Tsai (1 out of 1 patent)

5. Shih-Chuan Lee (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Vasstek International Corporation. Retrieved from https://idiyas.com/company/vasstek-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]