Woojin Plastic Co., Ltd. is a South Korean company based in Namyangju, specializing in the development and manufacturing of innovative bag accessories. The company focuses on a range of core technologies, including buckles, strap adjusters, locking devices, and accessory connectors, catering to various industries that require reliable and functional fastening solutions. With a commitment to quality and innovation, Woojin Plastic plays a significant role in enhancing the usability and design of bags and related products.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

106 Patents

#1 in Namyangju

#180 in South Korea

#7,411 in the World

Namyangju, South Korea

Woojin Plastic Co., Ltd.

Forward Citations = 663

5 inventors:

Nan Hee Paik (112 out of 133 patents)

Ji Won Son (112 out of 143 patents)

Ji Hye Paik (112 out of 131 patents)

4. Jisook Paik (59 out of 94 patents)

5. Ji Sook Paik (53 out of 54 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Woojin Plastic Co., Ltd.. Retrieved from https://idiyas.com/company/woojin-plastic-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]

7 patents (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]