% Expired Patents = 50.0

Forward Citations = 6

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3 inventors (with patents filed for the assignee):

Kang Gu Lee (2 out of 6 patents)

Young Hwan Uhm (1 out of 1 patent)

Jung Min Han (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 9850583 - Apparatus and method for forming lubricant recess having minute configuration in curved inner surface (2017-12-26),

2. 6435203 - Apparatus and method for regenerating etchant solution containing metal compound (2002-08-20),

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USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#19 in Siheung

#3,796 in South Korea

Siheung, South Korea

Hwabaek Engineering Co., Ltd.

Forward Citations = 6

3 inventors:

Kang Gu Lee (2 out of 6 patents)

Young Hwan Uhm (1 out of 1 patent)

Jung Min Han (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hwabaek Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/hwabaek-engineering-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]