You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

Go Back

Son Thai Hoang

Senior Associate

Biography

Son Thai Hoang is a licensed lawyer and a senior associate in Tilleke & Gibbins’ Hanoi office, where he handles a wide range of matters related to establishing and protecting trademarks and copyrights in Vietnam. He also assists clients with IP commercialization, including drafting, reviewing, and localizing IP-related agreements. With more than 18 years of experience in handling IP rights conflicts and commercializing IP rights, Son has successfully helped numerous clients protect and commercialize their IP rights, and overcome complex office actions issued by the Intellectual Property Office of Vietnam.

Recognized as a leading trademark practitioner in Vietnam by the WTR 1000, Son is an enthusiastic advocate for IP rights in Vietnam and regularly works with government agencies and universities to raise awareness of IP issues. He also serves as an instructor for INTA’s International Certificate Course.

Before joining Tilleke & Gibbins, Son worked at a top local IP firm as the head of the appeal department, and has gained considerable knowledge and practical experience in the protection of intellectual property rights with an emphasis on oppositions, appeals, and cancellations.

Experience

  • Assisted with dozens of successful franchising and licensing projects in Vietnam in a wide variety of industry sectors, including retail, food and beverages, fashion, toys, car rental, real estate, and education.
  • Represented and advised U.S.-based multinational pharmaceutical companies to successfully overcome various descriptive refusals and win opposition cases.
  • Acted for world-leading Japanese automobile companies in various cases of trademarks conflicting with others’ protected works of applied art and/or industrial designs.
  • Helped an association in Germany to prevent its trademark from being hijacked by another association in Vietnam that had already obtained a consent letter from the German Embassy in Vietnam for both registration and use of such trademark in Vietnam.
  • Advised a Singaporean coffee-manufacturing company in a trademark dispute with a world-leading fast-food company.
ABOUT Son Thai

Practices

Dispute Resolution and Litigation

Intellectual Property

Location

Languages

    Vietnamese

    English

Education

    LLB, Hanoi Law University

    BA, Hanoi Open University

Insights

May 22, 2026
Intellectual property specialists from Tilleke & Gibbins in Vietnam have contributed an updated Intellectual Property Transactions in Vietnam overview for Thomson Reuters Practical Law, an online publication that provides comprehensive legal guides for jurisdictions worldwide. The Vietnam overview was authored by Linh Thi Mai Nguyen, Thanh Phuong Vu, Chi Lan Dang, Son Thai Hoang, and Duc Anh Tran. The chapter provides a high-level examination of key aspects of IP transactions law in Vietnam, including IP assignment and licensing, research and development collaborations, IP in mergers and acquisitions (M&A), lending and taking security over intellectual property rights, settlement agreements, employee- and consultant-created IP, competition law, taxation, and non-tariff trade barriers. Key topics covered in the chapter include: IP assignment: Basis and formalities for assignments of patents, utility models, trade marks, copyright, design rights, trade secrets, confidential information, and domain names in Vietnam. IP licensing: Scope, formalities, and recordal requirements for licensing patents, trade marks, copyright, design rights, and trade secrets. Research and development collaborations: Treatment of improvements, derivatives, and joint ownership of IP, including exploitation and enforcement issues. IP aspects of M&A and security: Due diligence, warranties, transfer formalities, and taking security over intellectual property rights. Practical Law, a legal reference resource from Thomson Reuters, publishes a range of guides for hundreds of jurisdictions and practice areas. The Intellectual Property Transactions Global Guide is a valuable resource for legal practitioners seeking comparative insight into transactional IP issues across multiple jurisdictions. To view the latest version of the Intellectual Property Transactions in Vietnam overview, please visit the Practical Law website and enroll in the free Practical Law trial to gain full access.
Read More
February 25, 2026
Tilleke & Gibbins has updated the Vietnam chapter in the newly released Licensing 2026 guide, published by Lexology Panoramic. The comparative guide provides companies and other interested readers with information on licensing law and practice in various countries around the world. Licensing 2026 provides detailed information on the following topics: Restrictions, laws and licensing arrangements Intellectual property issues: Paris Convention for the Protection of Industrial Property, contesting the validity of licensor’s IP rights, invalidity and expiry of IP rights, security interests, proceedings against third parties, sublicensing, jointly owned IP, first to file, scope of patent protection, trade secrets, copyright Software licensing: Perpetual licensing, legal requirements, user restrictions Royalties and payments, currency conversion, and taxes: Relevant legislation, restrictions, taxation of foreign licensors Competition law issues: Restrictions on trade, legal restrictions, and IP-related court rulings Indemnification, disclaimers, and damages: Prevalence and enforceability of indemnity provisions and contractual waivers of damages Termination: Right to terminate, impact of termination Bankruptcy: Impact of licensee or licensor bankruptcy Dispute resolution: Governing law, arbitration, enforceability, injunctive relief, contractual waivers The Vietnam chapter is available below as a PDF. Readers can gain 30 days of complementary access to the full Licensing 2026 guide and the rest of Lexology Panoramic’s varied offerings through this link.
Read More
October 20, 2024
The annual statistics issued by the Intellectual Property Office of Vietnam (“IP Office”) in recent years show an increase in the number of IP transactions and applications to establish IP rights, including requests for the recordal of assignment of IP rights. Nevertheless, the numbers of trademark assignment recordals approved by the IP Office has not followed this trend, falling from 1,281 requests approved in 2022 to 1,120 requests approved in 2023. This decrease may be due to the IP Office’s overly strict viewpoint in approving trademark assignments, including its rejection of assignment recordal on the ground of conflict with the assignor’s trade name. IP Office’s practice on assignment recordal Vietnam’s IP Law restricts the assignment of trademarks in several cases, as set out in Article 139.4 that “the assignment of the rights to marks must not cause confusion as to properties or origins of goods or services bearing such marks.” Thus, when an assigned mark is identical to the dominant element of the assignor’s company name, the IP Office will view that the assignee’s use of the mark will result in confusion with the assignor’s trade name, and then instantly reject the assignment request. In this case, the IP Office will only accept the assignment if the IP holder can submit documents issued by relevant authorities proving at least one of the following conditions: The assignor has assigned all business premises and operations under its name to the assignee; The assignor has removed business lines relating to the goods/services bearing the trademarks and such removal is recorded in the Enterprise Registration Certificate; The assignor has been dissolved or does not exist after signing the agreement; The assignor has changed its name after signing the agreement so that it does not contain any element identical or similar to the assigned
Read More
July 24, 2024
Experts from Tilleke & Gibbins’ intellectual property team have contributed an updated Intellectual Property Transactions in Vietnam to Thomson Reuters Practical Law, a high-level comparative overview of  laws and regulations across multiple jurisdictions. Intellectual Property Transactions focuses on business-related aspects of intellectual property, such as the value of intellectual assets in M&A transactions, and the licensing of IP portfolios. Key topics covered in the chapter include: IP assignment: Basis and formalities for assignments of patents, utility models, trademarks, copyright, design rights, trade secrets, confidential information, and domain names. IP licensing: Scope and formalities for licensing patents, utility models, trademarks, copyright, design rights, and trade secrets. Research and development collaborations. IP audits. IP aspects of M&A: Due diligence, warranties/indemnities, and transfer of IPRs. Employee and consultant agreements. Practical Law, a legal reference resource from Thomson Reuters, publishes a range of guides for hundreds of jurisdictions and practice areas. The Intellectual Property Transactions Global Guide is a valuable resource for legal practitioners, covering numerous jurisdictions worldwide. To view the latest version of the Intellectual Property Transactions in Vietnam overview, please visit the Practical Law website and enroll in the free Practical Law trial to gain full access.
Read More

Awards & Rankings

May 14, 2026
Asian Legal Business (ALB) has published the ALB Asia IP Rankings 2026, the latest edition of its annual guide recognizing leading intellectual property firms across the region. Continuing the approach introduced last year, the rankings present a unified table in each jurisdiction, combining patent and trademark/copyright work to provide a more holistic view of the IP market. Tilleke & Gibbins has retained strong rankings in all three jurisdictions covered by the survey: Thailand: Tier 1 Vietnam: Tier 1 Indonesia: Tier 2 The rankings are based on work conducted between February 2025 and February 2026, covering both ongoing and completed contentious and noncontentious matters. ALB’s research draws on firm submissions, client feedback, editorial resources, and market input to identify the region’s leading IP practices. Tilleke & Gibbins’ IP team has maintained a strong track record across all ranked jurisdictions since the inception of the ALB IP Rankings in 2018. To view the full rankings, please see the May 2026 issue of ALB.
Read More
May 11, 2026
Tilleke & Gibbins has been recognized in five practice areas at the Asia Business Law Journal (ABLJ) Vietnam Law Firm Awards 2026, reflecting the firm’s continued strength across a range of legal disciplines in Vietnam. The firm received honors in the following categories: Artificial Intelligence Data Compliance and Cyber Security IP Litigation Labor & Employment Technology, Media & Telecommunications The ABLJ Vietnam Law Firm Awards highlight leading law firms across key practice areas, with multiple firms typically recognized in each category. The 2026 edition marks the fourth year of the awards program. These recognitions underscore the work of Tilleke & Gibbins’ Vietnam-based teams, particularly in technology-driven and regulatory-focused areas of practice. For more details and the full list of winners, please visit the ABLJ website.
Read More
May 11, 2026
Tilleke & Gibbins has continued to show excellent performance in the recently released Benchmark Litigation 2026 rankings for dispute resolution firms in the Asia-Pacific region. The rankings include two jurisdictions where Tilleke & Gibbins is active: Thailand and Vietnam. Firm Rankings A full summary of the firm’s rankings is provided below: Thailand Commercial & Transactions – Tier 1 Government & Regulatory – Tier 1 Labor & Employment – Tier 1 Intellectual Property – Tier 1 Trade & Customs – Tier 2 Vietnam Commercial & Transactions (Foreign Firms) – Tier 1 Intellectual Property (Foreign Firms) – Tier 1 Labor & Employment (International Firms) – Highly Recommended (top tier awarded in this category) White Collar Crime – Recommended (top tier awarded in this category) Energy & Construction (Foreign Firms) – Tier 2 International Arbitration – Tier 2 Individual Rankings The 2026 edition also recognizes 12 Tilleke & Gibbins lawyers in Thailand—more than any other firm in the jurisdiction—and four in Vietnam. Thailand Alongkorn Tongmee – Trade & Customs Chitchai Punsan – Commercial & Transactions Chusert Supasitthumrong – Labor & Employment John Frangos – Commercial & Transactions Noppramart Thammateeradaycho – Shipping Nuttaphol Arammuang – Intellectual Property Piyawat Vitooraporn – Commercial & Transactions Pongpalin Chantrapirom – Commercial & Transactions Suebsiri Taweepon – Intellectual Property Suruswadee Jaimsuwan – Commercial & Transactions Thawat Damsa-ard – Commercial & Transactions Tiziana Sucharitkul – Commercial & Transactions, Government & Regulatory Vietnam Duc Anh Tran – Commercial & Transactions Linh Duy Mai – Intellectual Property Loc Xuan Le – Intellectual Property Tu Anh Tran – Commercial & Transactions Benchmark Litigation’s annual research is based on interviews with dispute resolution specialists and clients, as well as analysis of recent casework and market developments. To view the full results, please visit the Benchmark Litigation websites for Thailand and Vietnam.
Read More

Other Professionals

See All Professionals