Trademarks = 3

Forward Citations = 9

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4 inventors (with patents filed for the assignee):

Hong-sen Yan (1 out of 13 patents)

Pei-Chen Chao (1 out of 1 patent)

Chih-Wen Yiou (1 out of 1 patent)

4. Chien-Chun Chang (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5224916 - Door moving mechanism for a cutting machine (1993-07-06),

2. 5129140 - Cutter exchanging apparatus incorporated in a machine (1992-07-14),

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USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#1,497 in Taipei

#4,250 in Taiwan

Taipei, Taiwan

Leadwell Cnc Machines Mfg., Corp.

Forward Citations = 9

4 inventors:

Hong-sen Yan (1 out of 13 patents)

Pei-Chen Chao (1 out of 1 patent)

Chih-Wen Yiou (1 out of 1 patent)

4. Chien-Chun Chang (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Leadwell Cnc Machines Mfg., Corp.. Retrieved from https://idiyas.com/company/leadwell-cnc-machines-mfg

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]