% Expired Patents = 54.5

EPO Patents = 1

Forward Citations = 208

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7 inventors (with patents filed for the assignee):

In-Sung Song (6 out of 9 patents)

Se-Bum Choi (2 out of 2 patents)

Yong-Yeon Kim (2 out of 2 patents)

4. Song In-Sung (1 out of 1 patent)

5. Cho Seung Hee (1 out of 1 patent)

6. Jae-Chul Jin (1 out of 10 patents)

7. Seung Hee Cho (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 10423019 - Foldable display device (2019-09-24),

2. 10394062 - Foldable display device (2019-08-27),

3. 9720447 - Foldable display device (2017-08-01),

4. 9562380 - Flexible hinge device having cooperative operating structure (2017-02-07),

5. 9348370 - Flexible display device having guide member (2016-05-24),

6. 9047055 - Foldable flexible display device (2015-06-02),

7. 8813312 - Hinge for display device (2014-08-26),

8. 8522401 - Hinge apparatus for portable communication device (2013-09-03),

9. 8186016 - Hinge device for mobile device of folding type (2012-05-29),

10. 8185172 - Swing type cover opening and closing device for mobile phone (2012-05-22),

11. 8185171 - Swing type cover opening and closing device for mobile phone (2012-05-22),

Company Overview

Prexco Co., Ltd. is a South Korean company based in Chungcheongnam-do, specializing in advanced materials and innovative manufacturing solutions. The organization focuses on developing high-performance products for various industries, including electronics and automotive sectors. With a commitment to research and development, Prexco aims to enhance product efficiency and sustainability through cutting-edge technology. Its strategic location in South Korea positions it well within a dynamic industrial landscape, fostering collaboration and growth.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

11 Patents

#11 in Chungcheongnam-do

#1,012 in South Korea

#51,761 in the World

Chungcheongnam-do, South Korea

Prexco Co., Ltd.

Forward Citations = 208

7 inventors:

In-Sung Song (6 out of 9 patents)

Se-Bum Choi (2 out of 2 patents)

Yong-Yeon Kim (2 out of 2 patents)

4. Song In-Sung (1 out of 1 patent)

5. Cho Seung Hee (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Prexco Co., Ltd.. Retrieved from https://idiyas.com/company/prexco-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]