Forward Citations = 7

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6 inventors (with patents filed for the assignee):

Jin Hee Ahn (1 out of 4 patents)

Sang Hyo Kim (1 out of 1 patent)

Seung Soo Han (1 out of 3 patents)

4. Kyu Tae Choi (1 out of 1 patent)

5. Jung Ho Yoo (1 out of 1 patent)

6. Chang Keon Cho (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 8621797 - Steel structure including pre-stressing brackets for improving load-carrying capacity and serviceability (2014-01-07),

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USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#1,945 in Seoul

#5,790 in South Korea

Seoul, South Korea

Yooho Development & Construction Co. Ltd.

Forward Citations = 7

6 inventors:

Jin Hee Ahn (1 out of 4 patents)

Sang Hyo Kim (1 out of 1 patent)

Seung Soo Han (1 out of 3 patents)

4. Kyu Tae Choi (1 out of 1 patent)

5. Jung Ho Yoo (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yooho Development & Construction Co. Ltd.. Retrieved from https://idiyas.com/company/yooho-development-and-construction-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]