FirstLaw PC is one of the leading law firms in South Korea. It receives recognition from the market for its comprehensive IP services. The team has a strong capacity to handle a wide variety of IP matters, such as patent prosecution and litigation. It is organized into a chemical practice group, an electronics and IT practice group, and a mechanical practice group to meet the needs of its clients. It also supports clients with trade mark services such as applications, oppositions, and dispute resolution.
Notable patent practitioners: Changse Leon Kim, Young Sun Jung
Notable soft IP practitioner: Jeong Won Lee
2026
"High quality of prosecution services"
"The team at FirstLaw is highly skilled with excellent responsiveness."
"Incredibly responsive and knowledgeable about latest case law"
"Excellent prosecution counsel able to navigate very complex matters (technically and legally)"
"The most responsive firm that we have in this jurisdiction. Also very helpful to have Ryan located in the US to help coordinate the work"
Ryan Kim
"Great management of our relationship and excellent communication"
Jeong Won Lee
"Jeong Won manages the trademark prosecution practice at FirstLaw in a very effective and skilled manner. She maintains excellent client relationships and takes the time to get to know the client."
2025
"Efficient, effective, and understanding."
"I have worked with FirstLaw for over 25 years and are very familiar and comfortable with their personnel and services."
"Impressed by their quick understanding of the technologies and skilful representation before the Korean Patent Office. This has created a deep trust by us and our Japanese clients."
"Professional, mutual trust, easy communication, flexible prices."
"They are extremely responsive and very detailed. Also, their fees are very reasonable."
"They are trustworthy and easy-going, while always being professional and responsive."
"Very detail-oriented and they always think of clients when asking questions."
"We have had long-term good relations, and we are aware of the quality of their services."
Case studies show prosecution, invalidation trials, and opposition work for clients across various industry sectors.
Case studies show the firm handled both contentious and prosecution matters for various clients.