Korean Patent Attorneys

Mooyun Shin      Managing Partner / Patent Attorney

Yonsei University, BS in Electrical and Electronic Engineering (2008)

Admitted to the Korean Patent Attorney (2012)

Member of KPAA (Korean Patent Attorney Association)

Member of INTA (International Trademark Association)

Member of APAA (Asian Patent Attorney Association)

Member of FIPPI (International Federation of Intellectual Property Attorneys)

Hyundai Engineering Co. Ltd (2008 – 2010)

NAM & NAM World Patent & Law Firm (2011 – 2013)

Y.P. Lee, Mock & Partners IP Law Firm (2013 – 2015)

E.M.HWANG & PARTNERS Patent & Law Firm (2015 – 2016)

KIYUL IP LAW FIRM (2016 – Present)


Electricity and Electronic Engineering, Communication, Business model, Semiconductor, Power plant

Prosecution and litigations on behalf of Qualcomm, SEL, Airbus Helicopters, Samsung Electronics, DSME, and etc.,

Young-hoon Lee      Partner / Patent Attorney

Korea University, BS in Computer and Communication Engineering (2016)

Admitted to the Korean Patent Attorney (2016).

Member of KPAA (Korean Patent Attorney Association)

Member of INTA (International Trademark Association)


U IP Law Firm (2016 – 2017)

K.J.Lee Patent & Trademark Law Firm (2018)

KIYUL IP LAW FIRM (2018 – Present)

Computer Science Engineering, Electricity and Electronic Engineering, Communication, Business model

Prosecution and litigations on behalf of Samsung Electronics, Tmaxsoft, Seoul National University Hospital, and etc.

Jong-heon Seok      Partner / Patent Attorney

Graduated from Korea University, Division of Biotechnology (2012)

Admitted to the Korean Patent Attorney (2012)

Completed civil action practice training for patent attorney

Member of KPAA (Korean Patent Attorney Association)

Member of INTA (International Trademark Association)

Former) Patent attorney of Dooho IP Law Firm (2021 – 2022)

LEECHAE Intellectual Property (2019 – 2023)

KIYUL IP LAW FIRM (2023 – Present)

Ji-soo Hwang     Patent Attorney

Yonsei University, BS in Electrical and Electronic Engineering (2015)

Admitted to the Korean Patent Attorney (2015)

Member of KPAA (Korean Patent Attorney Association)

Yoon&Lee International Patent & Law Firm (2014-2016)

K.J.Lee Patent & Trademark Law Firm (2016-2019)

Seoul Central District Court (2019-2024)

KIYUL IP LAW FIRM (2024 – Present)


Electrical and Electronic Engineering, LTE & 5G Communication, Business model, Semiconductor

Prosecution and litigations on behalf of Samsung Electronics, Samsung Advanced Institute of Technology, KAIST, Hanyang University, Sungkyunkwan University, ETRI and etc.,

Sohee Kang     Patent Attorney

Seoul National University, BS in Electrical and Electronic Engineering (2013)

Admitted to the Korean Patent Attorney (2013)

Member of KPAA (Korean Patent Attorney Association)

Member of INTA (International Trademark Association)


NAM & NAM World Patent & Law Firm (2013-2016)

Yoon&Lee International Patent & Law Firm (2016~2017)

NAM & NAM World Patent & Law Firm (2017-2019)

Leehyoun Intellectual property Law Firm (2019~2024)

KIYUL IP LAW FIRM (2024 – Present)

Electricity and Electronic Engineering, Communication, Business model, Semiconductor

Prosecution and litigations on behalf of Applied Co Ltd, Seagate, Google, Qualcomm, Samsung Electronics and etc.,

Mooyun Shin
Managing Partner / Patent Attorney
  • Yonsei University, BS in Electrical and Electronic Engineering (2008)
  • Admitted to the Korean Patent Attorney (2012)
  • Member of KPAA (Korean Patent Attorney Association)
  • Member of INTA (International Trademark Association)
  • Member of APAA (Asian Patent Attorney Association)
  • Member of FIPPI (International Federation of Intellectual Property Attorneys)
  • Hyundai Engineering Co. Ltd (2008 – 2010)
  • NAM & NAM World Patent & Law Firm (2011 – 2013)
  • Y.P. Lee, Mock & Partners IP Law Firm (2013 – 2015)
  • E.M.HWANG & PARTNERS Patent & Law Firm (2015 – 2016)
  • KIYUL IP LAW FIRM (2016 – Present)
  • Electricity and Electronic Engineering, Communication, Business model, Semiconductor, Power plant
  • Prosecution and litigations on behalf of Qualcomm, SEL, Airbus Helicopters, Samsung Electronics, DSME, and etc.,
Young-hoon Lee
Partner / Patent Attorney
  • Korea University, BS in Computer and Communication Engineering (2016)
  • Admitted to the Korean Patent Attorney (2016).
  • Member of KPAA (Korean Patent Attorney Association)
  • Member of INTA (International Trademark Association)
  • U IP Law Firm (2016 – 2017)
  • K.J.Lee Patent & Trademark Law Firm (2018) S
  • KIYUL IP LAW FIRM (2018 – Present)
  • Computer Science Engineering, Electricity and Electronic Engineering, Communication, Business model
  • Prosecution and litigations on behalf of Samsung Electronics, Tmaxsoft, Seoul National University Hospital, and etc.
Jong-heon Seok
Partner / Patent Attorney
  • Graduated from Korea University, Division of Biotechnology (2012)
  •  Admitted to the Korean Patent Attorney (2012)
  • Completed civil action practice training for patent attorney
  • Member of KPAA (Korean Patent Attorney Association)
  • Member of INTA (International Trademark Association)
  • Former) Patent attorney of Dooho IP Law Firm (2021 – 2022)
  • LEECHAE Intellectual Property (2019 – 2023)
  • KIYUL IP LAW FIRM (2023 – Present)
Sohee Kang
Patent Attorney
  • Seoul National University, BS in Electrical and Electronic Engineering (2013)
  • Admitted to the Korean Patent Attorney (2013)
  • Member of KPAA (Korean Patent Attorney Association)
  • Member of INTA (International Trademark Association)
  • NAM & NAM World Patent & Law Firm (2013-2016)
  • Yoon&Lee International Patent & Law Firm (2016~2017)
  • NAM & NAM World Patent & Law Firm (2017-2019)
  • Leehyoun Intellectual property Law Firm (2019~2024)
  • KIYUL IP LAW FIRM (2024 – Present)
  • Electricity and Electronic Engineering, Communication, Business model, Semiconductor
  • Prosecution and litigations on behalf of Applied Co Ltd, Seagate, Google, Qualcomm, Samsung Electronics and etc.,
Ji-soo Hwang
Patent Attorney
  • Yonsei University, BS in Electrical and Electronic Engineering (2015)
  • Admitted to the Korean Patent Attorney (2015)
  • Member of KPAA (Korean Patent Attorney Association)
  • Yoon&Lee International Patent & Law Firm (2014-2016)
  • K.J.Lee Patent & Trademark Law Firm (2016-2019)
  • Seoul Central District Court (2019-2024)
  • KIYUL IP LAW FIRM (2024 – Present)