% Expired Patents = 33.3

Forward Citations = 16

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6 inventors (with patents filed for the assignee):

Tien-Rong Lu (3 out of 22 patents)

Chih-Jen Yang (1 out of 3 patents)

Jih-Yi Wang (1 out of 7 patents)

4. Yih Chang (1 out of 13 patents)

5. Jung-Lung Liu (1 out of 2 patents)

6. Chih-Ming Kuo (1 out of 4 patents)

3 patents: Sort by Forward Citations

1. 7187117 - Method for forming a photosensitive pixel-defining layer on an OLED panel (2007-03-06),

2. 6456358 - Surface-treatment apparatus for forming a photoresist-isolating wall on a panel (2002-09-24),

3. 6393716 - Method and apparatus for transporting substrates in OLED process (2002-05-28),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#458 in Hsinchu

#3,314 in Taiwan

Hsinchu, Taiwan

Ritek Display Technology Co.

Forward Citations = 16

6 inventors:

Tien-Rong Lu (3 out of 22 patents)

Chih-Jen Yang (1 out of 3 patents)

Jih-Yi Wang (1 out of 7 patents)

4. Yih Chang (1 out of 13 patents)

5. Jung-Lung Liu (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ritek Display Technology Co.. Retrieved from https://idiyas.com/company/ritek-display-technology-company

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]