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USPTO Data Jan 1 1976 - Nov 3 2026
9 Patents
#32 in Suwon
#1,185 in South Korea
Leehan Corporation
Forward Citations = 38
14 inventors:
Leehan Corporation
Calculating rank
% Expired Patents = 55.6
EPO Patents = 3
Forward Citations = 38
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14 inventors (with patents filed for the assignee):
Cheong Yong Cho (6 out of 8 patents)
Min Young Park (3 out of 3 patents)
Hyun Kee Jang (2 out of 2 patents)
4. Byeong Kook Han (2 out of 2 patents)
5. Ho Sung Kim (1 out of 30 patents)
6. Sang Cheol Baek (1 out of 1 patent)
7. Jung Wu Jung (1 out of 2 patents)
8. Cheongyong Cho (1 out of 1 patent)
9. Kyoung Won Kim (1 out of 4 patents)
10. Jin Kyu Kim (1 out of 30 patents)
11. Min Yong Park (1 out of 2 patents)
12. Sang Chul Baek (1 out of 1 patent)
13. Byoung Ook Son (1 out of 1 patent)
14. Kyoung Ho Won (1 out of 1 patent)
9 patents:
Company Overview
Leehan Corporation is a leading provider of innovative solutions in the field of technology and consulting services. With a team of highly skilled professionals, we strive to deliver cutting-edge solutions that drive business growth and success. Our services include IT consulting, software development, and digital marketing. We are committed to exceeding our clients' expectations and helping them achieve their goals.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Leehan Corporation. Retrieved from https://idiyas.com/company/leehan
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]
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]
3 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]