Profile
Work Department
Position
Director, Intellectual Property
Career
Siau Wen is an Intellectual Property specialist with more than 25 years of experience in contentious and non-contentious IP practice.
She manages the global trade mark, design and and patent portfolios of foreign and local multinational clients from a wide range of industries. She also advises clients on general IP and regulatory matters as well as issues of gaming, product advertising, labeling, and branding strategy.
Siau Wen handles various facets of IP commercial transactions. They include due diligence; negotiations; and drafting and reviewing licensing, franchising, sale and transfer, confidentiality, distributorship, and consultancy agreements relating to IP rights.
Siau Wen is active in the area of Intellectual Property litigation and enforcement. She focuses on disputes involving trade marks, copyright, domain names, designs, and confidential information.
Languages
Memberships
- Asst. Treasurer, Exco, The International Association for the Protection of Intellectual Property
- Assessor, Panel of Assessors for COVID-19 Temporary Relief, Ministry of Law
- Chair, Non-Traditional Trade Marks Global Advocacy Sub-Committee, International Trademark Association
- Member, International Trademark Association
- Member, Asian Patent Attorneys Association (APAA)
- Member, Anti-Counterfeiting Committee, APAA
- Member, INTA Non-Traditional Marks Asia Pacific Subcommittee
- Member, Law Society of Singapore
- Member, Singapore Academy of Law
Education
- LL.B. (Hons), National University of Singapore (1998)
- Admitted to the Singapore Bar (1999)
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Testimonials
Collated independently by Legal 500 research team.
‘Tony Yeo and Rozalynne Asmali are very competent, and backed by an established team including lawyers and patent attorneys.’
‘I've worked closely with this firm on trademark matters for years, and I genuinely can’t recommend them highly enough. What makes them stand out isn’t just their deep legal knowledge, which is excellent, but their ability to combine that with strategic thinking, commercial awareness, and real day-to-day reliability.'
‘Ruby Tham is a real standout. She’s incredibly sharp, quick to get to the core of an issue, and always brings clear, practical advice. What I really value is how calm, focused, and easy to work with she is, even when things get complicated. She has great judgment, knows when to push and when to hold back, and always keeps the bigger picture in mind. Just a great mix of legal expertise and common sense. Working with her is a real pleasure.’
‘Meryl Koh is professionally excellent and personally a genuinely nice person. Very easy to work with. She has a flexible approach to hard questions. She also communicates and organizes very well. She's an all-rounder.’
‘Yvonne Tang is very responsive and helpful in all queries. She is solution focussed and keen to work proactively to address client expectations.’
‘While my interactions have been primarily with Javier Yeo, my experience reflects the hallmarks of a strong and well-run practice. The team demonstrates deep technical expertise in intellectual property, with a clear ability to balance legal rigour and commercial pragmatism. What sets them apart is their responsiveness, attention to detail, and ability to deliver high-quality advice efficiently. Clients would value their collaborative approach, tailored solutions, and commitment to understanding business needs.’
‘Javier Yeo stands out for his exceptional technical expertise in intellectual property matters and his ability to provide commercially astute advice even on complex issues. He is meticulous, highly responsive, and consistently demonstrates a deep understanding of both legal and business considerations.'
‘Lim Siau Wen and Ruby Tham, have been superb with the trademark renewals across our various jurisdictions. They are transparent with their fees and have been great to work with. Their effective monitoring of the status of our trademark portfolio is much appreciated.'
Key clients
- IIa| Technologies Pte Ltd adidas International Marketing Advanced Micro Devices Apple ASMPT Singapore Pte. Ltd. AstraZeneca Audi Beiersdorf AG BlackBerry Limited Boehringer Ingelheim Vetmedica GmbH Creative Technology Ltd Disney Dreamwell Ltd Dyson Technology Limited Exxon Mobile Corporation Facebook Ferrari Futbol Club Barcelona Hilton Worldwide Manage Limited Hitachi Hugo Boss Instagram Johnson & Johnson Kenvue KLA Corporation Lamborghini LVMH Mastercard International Incorporated Mediacorp Merck KGaA Mitsubishi Morinaga Nyugyo Kabushiki Kaisha Nokia Novartis ONE Championship PepsiCo Group Pfizer Qualcomm Riot Games, Inc Samsung Electronics Company Sentosa Development Corporation Shell International B.V. Skims Body Simmons Co., Ltd Singapore Airlines Snap Inc. Spotify AB Steven Madden Target Brands, Inc Toyota Tupperware Brands TWG Tea Company Pte Ltd Kering Group