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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Partner Attorney / 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.

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Partner Attorney

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.

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Partner Attorney

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.

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Partner Attorney

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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Partner Attorney (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.

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