Our People
Our People
Managing Partner / Co-Founder
Mark Cheolhyun Yoo


Mark Cheolhyun Yoo graduated from the Department of

Materials Science and Engineering at

Seoul National University, and passed the 44th
annual Patent Attorney Examination in 2007.
Since founding BLT Patent & Law Firm,

an ”accelerator“ type firm engaged in discovery and

direct investment into startups, Yoo an expert in

IT and BM, has been involved in IP and business

strategy consulting for all types of technology-based

startups. He is currently a member of the

deliberative council of the Korea SMEs and

Startups Agency and is in charge of

review for the TIPs program of the

Korea Business Angels Association.


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Managing Partner / Co-Founder
Jeonghan Uhm


Jeonghan Eom graduated from the Department of Chemical and Biological Engineering at Seoul National University, and passed the 43rd annual

Patent Attorney Examination in 2006.

With managing partner Mark Cheolhyun Yoo, Eom

co-founded BLT as a firm to discover and invest

directly in promising startups, and operated the

accelerator “Company B” and “Company B Private

Investment Fund.” Eom lectures in the areas of

corporate diagnostics, patent strategy, brand strategy,

equity capital inducement strategy and

startup marketing, and is engaged in angel

investment and startup planning,

marketing and IP affairs.


Learn more  Contact

Managing Partner
Ilhyo Suh


Managing Partner Ilhyo Suh graduated from the Department of

Electronic Engineering at Seoul National University, and passed

the 46th annual Patent Attorney Examination in 2010.

Suh is experienced in Korean and overseas patent

application filing for large Korean enterprises

as well as Korean patent applications for

large foreign corporations, and is currently

engaged primarily in SME patent applications and

patent consulting. Suh also excels as an

employee invention consultant, and his areas

of interest include technology escrow,

trade secrets and institutions for

business and patent protection.





Learn more  Contact

Managing Partner
Sunghyun Kim


Managing Partner Sunghyun Kim graduated from the Department of Information and Communication Engineering at Hanyang University

and the Korea University Graduate School of Management of Technology before passing the 47th Patent Attorney Examination in 2010.

Certified as a technology valuation analysis, technology

transfer agent and VC professional, Kim is interested

in technology commercialization, investment and IPOs,

and is active as a committee member for a range of

organizations, including NIPA, IITP, KISA, KOCCA,

the Korea Institute of Startup & Entrepreneurship

Development and Seoul Business Agency.

Having majored in ICT, Kim’s areas of responsibility

at BLT include artificial intelligence, IoT,

Cloud computing, blockchain technology,

smart semiconductors and convergence

fields such as in-vitro diagnostics.


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Managing Partner
Taekyun Chung


Managing Partner Taekyun Chung graduated from the Department of Electrical and Electronic Engineering at Yonsei University and passed

the 48th Patent Attorney Examination in 2011.

Chung built his experience in defense industries

IP affairs while serving in the Army IP Management

Bureau at the Ministry of Defense, and is engaged in

patent affairs for major Korean hospitals (Asan

Medical Center, Yonsei University Health System

and Seoul St. Mary’s Hospital) and medical

enterprises. Chung is also involved in patent

affairs and business for fintech,

security and AI startups.


Learn more  Contact

Managing Partner
Jeehye Nho


Managing Partner Jeehye Nho graduated from the Department of Biochemistry at Yonsei University, and passed the 44th Patent Attorney Examination in 2007. Nho is experienced in overseas and

domestic trademark and design applications for large

Korean and foreign enterprises, and has extensive

consulting experience in trademark and design

disputes. Currently a member of the industrial

property rights dispute arbitration committee of

the Korean Intellectual Property Office,

Nho is engaged in SME trademark and design

applications and consulting at BLT.



Learn more  Contact

Managing Partner (patent attorney and lawyer)
Yeonsoo Park


Managing Partner Yeonsoo Park graduated from the Department of

Biology Education at Seoul National University, and then passed the

46th Patent Attorney Examination in 2009 and the

first National Bar Examination in 2012.

Park has handled patent-related affairs for

domestic and overseas enterprises in the areas of

bioengineering, pharmaceuticals and chemistry,

and IP strategy and domestic-overseas

IP litigation for Korean bio firms.

At BLT, Park is responsible for chemical and

bio patent applications, IP dispute and

litigation response, and advisory.


Learn more  Contact

Managing Partner
Gihyeon Park


Patent attorney Gihyeon Park graduat
from the Department of Electrical Engineering 
at KAIST, and passed the 52nd Patent Attorney 
Examination in 2015.










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Associate
Donghyun Kim


Patent attorney Donghyun Kim 

graduated from the Department of

Electrical Engineering at

Korea University, and passed the

55th Patent Attorney Examination

in 2018.


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Associate
Minsik Koo


Patent attorney Minsik Koo

graduated from the Division of

Materials Science and Engineering

at Hanyang University, and passed

the 55th Patent Attorney Examination

in 2018.


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Associate
Jihong Kim


Patent attorney Minsik Koo

graduated from the Division of

Materials Science and Engineering

at Hanyang University, and passed

the 55th Patent Attorney Examination

in 2018.


Learn more  Contact

Associate
Shinwoo Yun


Patent attorney Shinwoo Yun

graduated from the Department 

of Electrical and Biological 

Physics at Kwangwoon University

and passed the 58th Patent Attorney Examination in 2021.


Learn more  Contact

Associate
Hyokon Jun


Patent attorney Hyokon Jun
graduated from the Department 

of Mechanical and Aerospace 

Engineering at Seoul National 

University, and passed the 56th Patent Attorney Examination in 2019.


Learn more  Contact

Managing Partner / Co-Founder
Mark Cheolhyun Yoo
Mark Cheolhyun Yoo graduated from the Department of Materials Science and Engineering at Seoul National University, and passed the 44th annual Patent Attorney Examination in 2007. Since founding BLT Patent & Law Firm, an ”accelerator“ type firm engaged in discovery and direct investment into startups, Yoo, an expert in IT and BM, has been involved in IP and business strategy consulting for all types of technology-based startups. He is currently a member of the deliberative council of the Korea SMEs and Startups Agency, and is in charge of review for the TIPs program of the Korea Business Angels Association.


Managing Partner / Co-Founder
Jeonghan Eom

Jeonghan Eom graduated from the Department of Chemical and Biological Engineering at Seoul National University, and passed the 43rd annual Patent Attorney Examination in 2006. With managing partner Mark Cheolhyun Yoo, Eom co-founded BLT as a firm to discover and invest directly in promising startups, and operated the accelerator “Company B” and “Company B Private Investment Fund.”Eom lectures in the areas of corporate diagnostics, patent strategy, brand strategy, equity capital inducement strategy and startup marketing, and is engaged in angel investment and startup planning, marketing and IP affairs.

Managing Partner
Ilhyo Suh

Managing Partner Ilhyo Suh graduated from the Department of Electronic Engineering at Seoul National University, and passed the 46th annual Patent Attorney Examination in 2010. Suh is experienced in Korean and overseas patent application filing for large Korean enterprises as well as Korean patent applications for large foreign corporations, and is currently engaged primarily in SME patent applications and patent consulting. Suh also excels as an employee invention consultant, and his areas of interest include technology escrow, trade secrets and institutions for business and patent protection.

Managing Partner
Sunghyun Kim

Managing Partner Sunghyun Kim graduated from the Department of Information and Communication Engineering at Hanyang University and the Korea University Graduate School of Management of Technology before passing the 47th Patent Attorney Examination in 2010. Certified as a technology valuation analysis, technology transfer agent and VC professional, Kim is interested in technology commercialization, investment and IPOs, and is active as a committee member for a range of organizations, including NIPA, IITP, KISA, KOCCA, the Korea Institute of Startup & Entrepreneurship Development and Seoul Business Agency. Having majored in ICT, Kim’s areas of responsibility at BLT include artificial intelligence, IoT, Cloud computing, blockchain technology, smart semiconductors and convergence fields such as in-vitro diagnostics.

Managing Partner
Taekyun Chung

Managing Partner Taekyun Chung graduated from the Department of Electrical and Electronic Engineering at Yonsei University and passed the 48th Patent Attorney Examination in 2011. Chung built his experience in defense industries IP affairs while serving in the Army IP Management Bureau at the Ministry of Defense, and is engaged in patent affairs for major Korean hospitals (Asan Medical Center, Yonsei University Health System and Seoul St. Mary’s Hospital) and medical enterprises. Chung is also involved in patent affairs and business for fintech, security and AI startups.

Managing Partner
Jeehye Nho

Managing Partner Jeehye Nho graduated from the Department of Biochemistry at Yonsei University, and passed the 44th Patent Attorney Examination in 2007. Nho is experienced in overseas and domestic trademark and design applications for large Korean and foreign enterprises, and has extensive consulting experience in trademark and design disputes. Currently a member of the industrial property rights dispute arbitration committee of the Korean Intellectual Property Office, Nho is engaged in SME trademark and design applications and consulting at BLT.

Managing Partner
(patent attorney and lawyer)
Yeonsoo Park

Managing Partner Yeonsoo Park graduated from the Department of Biology Education at Seoul National University, and then passed the 46th Patent Attorney Examination in 2009 and the first National Bar Examination in 2012. Park has handled patent-related affairs for domestic and overseas enterprises in the areas of bioengineering, pharmaceuticals and chemistry, and IP strategy and domestic-overseas IP litigation for Korean bio firms. At BLT, Park is responsible for chemical and bio patent applications, IP dispute and litigation response, and advisory.

Associate
Gihyeon Park

Patent attorney Gihyeon Park graduated from the Department of Electrical Engineering at KAIST, and passed the 52nd Patent Attorney Examination in 2015.

Associate
Donghyun Kim

Patent attorney Donghyun Kim graduated from the Department of Electrical Engineering at Korea University, and passed the 55th Patent Attorney Examination in 2018.

Associate
Minsik Koo

Patent attorney Minsik Koo graduated from the Division of Materials Science and Engineering at Hanyang University, and passed the 55th Patent Attorney Examination in 2018. 

Associate
Jihong Kim

Patent attorney Minsik Koo graduated from the Division of Materials Science and Engineering at Hanyang University, and passed the 55th Patent Attorney Examination in 2018. 

Associate
Shinwoo Yun

Patent attorney Shinwoo Yun graduated from the Department of Electrical and Biological Physics at Kwangwoon University, and passed the 58th Patent Attorney Examination in 2021.

Associate
Shinwoo Yun

Patent attorney Hyokon Jun graduated from the Department of Mechanical and Aerospace Engineering at Seoul National University, and passed the 56th Patent Attorney Examination in 2019.


Head Office (Gangnam) 3F, 33, Teheran-ro 8-gil, Gangnam-gu, Seoul (Cheongwon Building, Yeoksam-dong)

Tel : +82-2-514-0104     Fax : +82-70-4855-0102     Email : info@blt.kr


Incheon Office 26F, 165, Convensia-daero (POSCO Tower Building), Yeonsu-gu, Incheon (Stage9 Songdo POSCO Tower)

Tel : +82-32-710-5104     Fax : +82-70-4855-0102     Email : info@blt.kr

ⓒ 2021. BLT Patent & Law Firm All Rights Reserved.

Head Office (Gangnam) 3F, 33, Teheran-ro 8-gil, Gangnam-gu, Seoul (Cheongwon Building, Yeoksam-dong)

Tel : +82-2-514-0104     Fax : +82-70-4855-0102     E : info@blt.kr

Incheon Office 26F, 165, Convensia-daero (POSCO Tower Building), Yeonsu-gu, Incheon (Stage9 Songdo POSCO Tower)

Tel : +82-32-710-5104     Fax : +82-70-4855-0102     Email : info@blt.kr


ⓒ 2021. BLT Patent & Law Firm All Rights Reserved.