Peter (SungJin) CHUN Managing Partner

    Mr. Chun is a registered patent attorney with expertise in computers, networks, the Internet, software, wireless communication, semiconductors, display and video/audio processing.  He is a managing partner and co-founder of MUHANN with more than 20 years of experience in IP practice.  Mr. Chun mainly deals with patent prosecution, patent litigation, patent licensing, and counseling clients on a broad range of IP related matters.


    Prior to founding MUHANN, Mr. Chun worked for another major Korean IP law firm as the managing attorney responsible for handling prosecution work on behalf of IBM. He has been involved in a wide variety of patent infringement lawsuits including Fujitsu vs. Samsung regarding HDD head patents. He also served as a research engineer for Samsung Electronics for several years. During that time, he developed TCP/IP protocol stacks, LAN device drivers (Fast Ethernet, ATM), and communication programs, and  participated in developing PC servers, network switches, routers and firewalls. Mr. Chun has also been involved in projects in which he worked with UnixWare and Linux TCP/IP source code and has helped to develop many network programs, such as Web servers, mail servers and proxy servers. He also has experience in developing programs for speech recognition, neural networks, machine learning and natural language processing.


    Mr. Chun received his Bachelor and Master of Science in Computer Engineering with honors from Seoul National University. During graduate school, he participated in projects for developing natural language processing systems and speaker recognition systems. In 1994, Mr. Chun passed the Korean patent bar exam with the highest score of all applicants that year.


    Mr. Chun is a member of the Korea Patent Attorneys Association(KPAA), Asian Patent Attorneys Association(APAA), and AIPPI. He has been serving as a board member of APAA Korea and AIPPI Korea for many years.  He led the ICT group organized by the KPAA, which includes more than 500 Korean patent attorneys. He also served as a director of the Organizing Committee for the APAA 58th Council Meeting in 2010 and the 73rd APAA Council Meeting in 2022. By invitation, Mr. Chun is actively giving seminars on various IP issues for the KIPO, JPO, KINPA, KPAA, APAA and many universities and companies. For several years, he gave lectures to patent attorneys who had recently passed the patent bar exam, as part of official courses provided by the KIPO.


    Seoul National University, Graduate School of Engineering (M.E., Computer Science & Engineering)

    Seoul National University, College of Engineering (B.E., Computer Science & Engineering)


    MUHANN Patent & Law Firm

    Kim & Chang

    Samsung Electronics Co., Ltd.


    Korean Patent Attorneys Association (KPAA), Asian Patent Attorneys Association (APAA), AIPPI


    Korean, Japanese, English