Introduction
Joonghan (Joseph) Jo is a Partner at Cha & Kwon Law Firm. He is a licensed attorney in Korea and California and a patent attorney in Korea. He holds a Juris Doctor degree from the United States and specializes in startup law, venture capital, international legal matters, and technology & AI-related fields.
Recognized for his expertise in international law, he was selected as a Distinguished Attorney by Lawyers of Distinction's National Advisory Board in 2024. U.S. media have described him as:
“Mr. Jo is a distinguished legal professional with a robust career in international law, focusing on business law and cross-border litigation in both California and South Korea.”
Leveraging his experience managing law firms in Korea, San Francisco, and Silicon Valley, he provides comprehensive legal and business advisory services to both Korean and U.S. companies. He offers strategic legal guidance to startups entering the U.S. market, assisting them from the seed stage to exit. His expertise also extends to AI startups, supported by his hands-on experience developing ChatGPT Assistant APIs.
Committed to providing high-quality legal services, Mr. Jo believes that effective counsel requires deep industry and business insight. Drawing on his Silicon Valley legal experience, he delivers tailored, business-driven legal solutions that go beyond traditional legal advice.
Experiences
2025 ~ Partner, Cha & Kwon Law Firm
2023 ~ Founder, The Jo Law Firm, PC (San Francisco)
2022 ~ 2024 Open Door Legal (San Francisco), Civil & Employment Team
2016 ~ 2019 Judge Advocate Officer, Republic of Korea Army
External activities
2024 ~
Legal Advisor, OneiSoft Co.
2024 ~ Legal Advisor, One F&C Co.
2024 ~
Legal Advisor, BabeChat Inc. (U.S.)
2024 ~ Legal Advisor, Moohan Co.
2023 ~
Attorney of Record in the United States District Court, the Northern District of California
2023 ~ Attorney of Record in the United States District Court, the Central District of California
2023 ~ SF Bar Association, IP Section
2021 ~ 2023 Senior Production Editor, Hastings Law Journal
Education
2020 ~ 2023
University of California College of the Law, San Francisco (J.D.)
2013 ~ 2016
Chonnam National University Law School (J.D.)
2006 ~ 2012
College of Law, Dankook University (LL.B.)
Qualifications
2023
Admitted to Practice, California
2017
Certified Patent Attorney, South Korea
2016
Admitted to Practice, South Korea
Languages
Korean
English
Practice Areas
Corporate Law
Startups
Venture Capital
International
Technology
AI
SaaS
Intellectual Property (IP)
Copyright
Entertainment
M&A
IPO
Privacy Law
International Litigation
Publications
2023 Joonghan (Joseph) Jo, Public Enforcement and Disability Law: A United States-South Korea Comparison, 75 UC L.J. 199 (formerly Hastings L.J.) (2023). Indexed in SSCI Journals.