% Expired Patents = 33.3

Forward Citations = 23

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14 inventors (with patents filed for the assignee):

Chen-Jen Yang (4 out of 4 patents)

Kuo-Chu Yeh (3 out of 3 patents)

Ming-Huei Liu (2 out of 2 patents)

4. Tsong-Shin Jean (2 out of 3 patents)

5. Chih-Chia Hung (1 out of 1 patent)

6. Fang-Yi Hsu (1 out of 1 patent)

7. Li-Chi Su (1 out of 1 patent)

8. Cheng-Pang Ting (1 out of 1 patent)

9. Chien-Chung Bi (1 out of 1 patent)

10. Kai-Der Ker (1 out of 1 patent)

11. Kuei-Fei Teng (1 out of 2 patents)

12. Lung-Tarn Wu (1 out of 1 patent)

13. Ching-Liang Yang (1 out of 1 patent)

14. Tzea-Ching Hung (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 7666565 - Method of forming electrophotographic toner (2010-02-23),

2. 7510814 - Toner and methods of producing same (2009-03-31),

3. 6090511 - Multi-layered electrophotographic photoreceptors and method for (2000-07-18),

4. 6068958 - Infrared sensitive electrophtographic photoreceptors and method for (2000-05-30),

5. 5728499 - Protective layer composition of electrophotographic photoreceptor (1998-03-17),

6. 5567559 - Electrophotographic photoreceptors containing titanyl phthalocyanine (1996-10-22),

Company Overview

Sinonar Corporation is a leading technology company specializing in innovative solutions for the transportation industry. With a focus on sustainability and efficiency, we provide cutting-edge software and hardware solutions for fleet management, logistics, and asset tracking. Our dedicated team of experts is committed to delivering high-quality products and services to our customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#322 in Hsinchu

#2,095 in Taiwan

Hsinchu, Taiwan

Sinonar Corporation

Forward Citations = 23

14 inventors:

Chen-Jen Yang (4 out of 4 patents)

Kuo-Chu Yeh (3 out of 3 patents)

Ming-Huei Liu (2 out of 2 patents)

4. Tsong-Shin Jean (2 out of 3 patents)

5. Chih-Chia Hung (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sinonar Corporation. Retrieved from https://idiyas.com/company/sinonar

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]