% Expired Patents = 33.3

EPO Patents = 1

Forward Citations = 5

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5 inventors (with patents filed for the assignee):

Chia-Hung Chen (3 out of 7 patents)

Chien-Hsing Hsieh (3 out of 3 patents)

Edward Martin (3 out of 3 patents)

4. Jim Watkins (1 out of 1 patent)

5. James O Watkins (1 out of 38 patents)

6. Chia-hung Chen (0 patent)

3 patents: Sort by Forward Citations

1. 10663779 - Welding helmet with single LCD filter lens (2020-05-26),

2. 10172741 - Power saving welding helmet (2019-01-08),

3. 8331001 - Welding filter device and control method thereof (2012-12-11),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#270 in Taoyuan

#3,309 in Taiwan

Taoyuan, Taiwan

Arcmask Optech Co., Ltd.

Forward Citations = 5

5 inventors:

Chia-Hung Chen (3 out of 7 patents)

Chien-Hsing Hsieh (3 out of 3 patents)

Edward Martin (3 out of 3 patents)

4. Jim Watkins (1 out of 1 patent)

5. James O Watkins (1 out of 38 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Arcmask Optech Co., Ltd.. Retrieved from https://idiyas.com/company/arcmask-optech-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]

1 patent (EPO):

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]