% Expired Patents = 100.0

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

Lee-En Liu (1 out of 1 patent)

I-Pang Lin (1 out of 1 patent)

Yen-Chang Chen (1 out of 2 patents)

4. Shengfu Lin (1 out of 8 patents)

1 patent: Sort by Forward Citations

1. 8467609 - Document management device and document management method with identification, classification, search, and save functions (2013-06-18),

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USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#2,230 in Taipei

#6,134 in Taiwan

Taipei, Taiwan

Otiga Technologies Limited

Forward Citations = 0

4 inventors:

Lee-En Liu (1 out of 1 patent)

I-Pang Lin (1 out of 1 patent)

Yen-Chang Chen (1 out of 2 patents)

4. Shengfu Lin (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Otiga Technologies Limited. Retrieved from https://idiyas.com/company/otiga-technologies

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]