% Expired Patents = 100.0

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

Po-Wei Hsu (1 out of 4 patents)

Banumathy Balaganesan (1 out of 9 patents)

Kun-Feng Chiang (1 out of 3 patents)

4. Huang-Ming Guo (1 out of 3 patents)

1 patent: Sort by Forward Citations

1. 9450192 - Carbazole derivative and organic electroluminescent devices utilizing the same and fabrication method thereof (2016-09-20),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

1 Patents

#8 in Zhongli

#6,125 in Taiwan

Zhongli, Taiwan

E-Ray Optoelectronics Technology

Forward Citations = 1

4 inventors:

Po-Wei Hsu (1 out of 4 patents)

Banumathy Balaganesan (1 out of 9 patents)

Kun-Feng Chiang (1 out of 3 patents)

4. Huang-Ming Guo (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: E-Ray Optoelectronics Technology. Retrieved from https://idiyas.com/company/e-ray-optoelectronics-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]