Trademarks = 1

Forward Citations = 3

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4 inventors (with patents filed for the assignee):

Sean Chen (2 out of 2 patents)

Radium Huang (2 out of 2 patents)

James Huang (2 out of 27 patents)

4. Jeff Han (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 10099182 - Water-proof and dust-proof membrane assembly and applications thereof (2018-10-16),

2. 8530004 - Polymeric electret film and method of manufacturing the same (2013-09-10),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#7 in Zhongli

#4,250 in Taiwan

Zhongli, Taiwan

Ef-Materials Industries Inc.

Forward Citations = 3

4 inventors:

Sean Chen (2 out of 2 patents)

Radium Huang (2 out of 2 patents)

James Huang (2 out of 27 patents)

4. Jeff Han (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ef-Materials Industries Inc.. Retrieved from https://idiyas.com/company/ef-materials-industries

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]