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June 4, 2026

Tilleke & Gibbins Earns Strong Results in IAM Patent 1000 2026

Intellectual Asset Management (IAM)

Tilleke & Gibbins has reinforced its position as one of Southeast Asia’s leading patent practices in the newly released IAM Patent 1000 2026, earning top-tier firm rankings in Indonesia, Thailand, and Vietnam, alongside 23 individual recognitions across the region.

The firm achieved Gold rankings in Thailand and Vietnam and a Highly Recommended ranking in Indonesia—the highest tier available in the jurisdiction—highlighting the strength and consistency of its regional patent practice. This marks the firm’s 14th consecutive year in the top tier for Thailand, seventh consecutive year for Vietnam, and third straight year ranked among Indonesia’s leading firms.

The firm’s strong regional performance is further reflected in the individual rankings, with the following Tilleke & Gibbins practitioners recognized for their expertise in patent law:

Indonesia

Thailand

Vietnam

The IAM Patent 1000 identifies the world’s leading patent firms and practitioners through extensive qualitative research based on feedback from clients, peers, and industry stakeholders.

For more details, please see the IAM Patent 1000 rankings for Indonesia, Thailand, and Vietnam.

RELATED INSIGHTS​ 

September 12, 2025
The 2025/2026 edition of the IFLR1000 Asia-Pacific rankings, released by International Financial Law Review (IFLR), highlights Tilleke & Gibbins’ continued excellence in financial and corporate transactional work. The firm has maintained its strong rankings across multiple jurisdictions and practice areas while achieving notable upgrades and new recognitions, reaffirming its position as a leading firm in the Asia-Pacific region. This year, Tilleke & Gibbins received firmwide rankings in key jurisdictions, including: Thailand Banking & Finance—Tier 3 Capital Markets: Debt—Tier 3 Capital Markets: Equity—Tier 3 M&A—Tier 2 Project Development—Tier 2 Restructuring & Insolvency—Tier 3 Vietnam Banking & Finance—Tier 4 M&A—Tier 3 Project Development—Tier 3 Cambodia Financial & Corporate—Tier 2 Project Development—Tier 2 Laos Financial & Corporate—Tier 2 In addition to these firmwide rankings, Tilleke & Gibbins had several standout individual recognitions, with 12 lawyers honored in the 2025/2026 individual rankings—an increase from last year’s 10. This year’s results include upgraded rankings for John Frangos and new rankings for Charupat Boon-Long, Derrick Khoo, Prisna Sungwanna, and Saravut Krailadsiri. The full list is as follows: Charunun Sathitsuksomboon—Highly Regarded, M&A, Thailand; Women Leader Charupat Boon-Long—Rising Star, M&A, Thailand (new ranking) David Mol—Rising Star, Corporate and M&A, Cambodia Derrick Khoo—Rising Star (Partner), Financial and Corporate, Thailand (new ranking) Jay Cohen—Highly Regarded, Banking, Cambodia John Frangos—Highly Regarded, Restructuring & Insolvency, Thailand (upgraded ranking) Niti Muangkote—Rising Star, Financial & Corporate and Project Development, Laos; Highly Regarded, Banking & Finance, Thailand Prisna Sungwanna—Highly Regarded, Financial & Corporate, Laos (new ranking) Saithong Rattana—Notable Practitioner, Project Development and M&A, Laos Santhapat Periera—Highly Regarded, Banking & Finance and M&A, Laos; Highly Regarded, Banking & Finance, Thailand Saravut Krailadsiri—Notable Practitioner, Thailand (new ranking) Tram Ngoc Bich Nguyen—Highly Regarded, M&A, Vietnam To see the full set of IFLR1000 rankings for Tilleke & Gibbins’ jurisdictions, please see the Cambodia, Laos, Thailand, and Vietnam pages
September 3, 2025
Tilleke & Gibbins has been shortlisted for several major honors at the upcoming Managing IP Asia-Pacific Awards 2025, reflecting the firm’s exceptional intellectual property work across the region. The firm has been shortlisted for Asia-Pacific Firm of the Year (Domestic), a prestigious category that highlights regional leadership among Asia-headquartered firms. Tilleke & Gibbins has also been recognized in six firm-of-the-year categories: Cambodia Firm of the Year Indonesia Firm of the Year Thailand Patent Firm of the Year Thailand Trademark Firm of the Year Vietnam Patent Firm of the Year Vietnam Trademark Firm of the Year Managing Partner Darani Vachanavuttivong has also been nominated for Asia-Pacific Practitioner of the Year in recognition of her outstanding contributions to the intellectual property field. For more information on the Managing IP Asia-Pacific Awards 2025 and to browse a full list of the nominees, please see the Managing IP website.
September 3, 2025
Tilleke & Gibbins is honored to announce that the firm has been shortlisted for three prestigious categories at the Asialaw Awards 2025. This year’s shortlist reflects the outstanding work of the firm’s teams across Southeast Asia and highlights their ongoing commitment to delivering exceptional client service in the region. In the firmwide category, Tilleke & Gibbins was nominated for: Cambodia Firm of the Year Laos Firm of the Year In the individual category, Prisna Sungwanna was shortlisted for Laos Female Lawyer of the Year, joining an impressive field of nominees from other leading firms. The Asialaw Awards celebrate the most outstanding firms and lawyers across the Asia-Pacific region. The 2025 winners are set to be announced at an awards ceremony in Ho Chi Minh City in November. For more information on the Asialaw Awards 2025 and to browse a full list of the nominees, please visit the Asialaw website.
August 21, 2025
Darani Vachanavuttivong, managing partner of Tilleke & Gibbins, has been included in the 2025 Top 15 Female Lawyers list from Asian Legal Business (ALB). The accolade highlights Darani’s notable contributions to the legal field and her consistent delivery of high-quality work. Darani is regarded as one of the most accomplished intellectual property lawyers in Asia, and under her leadership Tilleke & Gibbins has solidified its position as a powerhouse in providing business-focused intellectual property advice to companies in Southeast Asia. The Asia’s Top 15 Female Lawyers list celebrates distinguished female legal professionals across Asia who have demonstrated exceptional performance within their respective domains. In formulating the list, the evaluation team takes into account significant achievements and recent work, client engagement, reputation, and involvement in the legal community. ALB, which is owned by Thomson Reuters, publishes insights and perspectives to inform legal professionals in Asia-Pacific and the Middle East. The magazine also organizes various awards and rankings programs for law firms in Asia. To see the full ALB Top 15 Female Lawyers 2025 list and read the accompanying editorial, please see the August 2025 issue of ALB.