% Expired Patents = 57.1

Forward Citations = 22

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8 inventors (with patents filed for the assignee):

Ren-Haur Hwang (4 out of 4 patents)

Chih-Yi Chang (3 out of 3 patents)

Rei-Yian Chen (3 out of 3 patents)

4. Chen-Ron Lin (3 out of 5 patents)

5. Tung-Hsiang Liu (2 out of 2 patents)

6. Chien-Shan Huang (2 out of 2 patents)

7. Der-Yang Liu (2 out of 2 patents)

8. Jui-Kuang Chang (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 7273538 - Surface mountable laminated circuit protection device and method of making the same (2007-09-25),

2. 7102483 - Multi-layer over-current protector (2006-09-05),

3. 7069641 - Method for preparing composite materials of a positive temperature coefficient thermistor (2006-07-04),

4. 6873244 - Surface mountable laminated thermistor device (2005-03-29),

5. 6686827 - Surface mountable laminated circuit protection device and method of making the same (2004-02-03),

6. 6602438 - Structure for polymeric thermistor and method of making the same (2003-08-05),

7. 6590491 - Structure for composite materials of positive temperature coefficient thermistor devices and method of making the same (2003-07-08),

Company Overview

Protectronics Technology Corporation is a leading provider of technology solutions for security and surveillance. With a focus on innovative products and exceptional customer service, Protectronics offers advanced security systems for businesses and homeowners, including CCTV cameras, access control systems, and alarm systems. With a commitment to quality and reliability, Protectronics has earned a reputation for excellence in the security industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#168 in Taoyuan

#1,849 in Taiwan

Taoyuan, Taiwan

Protectronics Technology Corporation

Forward Citations = 22

8 inventors:

Ren-Haur Hwang (4 out of 4 patents)

Chih-Yi Chang (3 out of 3 patents)

Rei-Yian Chen (3 out of 3 patents)

4. Chen-Ron Lin (3 out of 5 patents)

5. Tung-Hsiang Liu (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Protectronics Technology Corporation. Retrieved from https://idiyas.com/company/protectronics-technology

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]