Igrs Engineering Lab Ltd.

Calculating rank

USPTO Granted Patents = 3

% Expired Patents = 100.0

Forward Citations = 6

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3 inventors (with patents filed for the assignee):

Zhiyu Wei (1 out of 4 patents)

Xiaohong Yu (1 out of 4 patents)

Jia Luo (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 8971154 - Synchronization of system time in electronic device (2015-03-03),

2. 8849247 - Remote mobile device information retrieval (2014-09-30),

3. 8449122 - Image marking method and apparatus (2013-05-28),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#1 in Haidian District, Beijing

#8,379 in unknown

Haidian District, Beijing, undefined

Igrs Engineering Lab Ltd.

Forward Citations = 6

3 inventors:

Zhiyu Wei (1 out of 4 patents)

Xiaohong Yu (1 out of 4 patents)

Jia Luo (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Igrs Engineering Lab Ltd.. Retrieved from https://idiyas.com/company/igrs-engineering-lab

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]