Leong Ooi Ling

Partner – Intellectual Property
+603-2632 9903 | leongooiling@rdl.com.my

Ooi Ling, a registered Patent Agent and Trademark Agent, practises in all areas of intellectual property law, handling litigation, prosecution, drafting of documents and enforcement of intellectual property rights and advising on issues such as brand strategy.

Her clients include those from the home products, food and beverages, fashion and clothing, toy, telecommunications and information technology industries.

Ooi Ling has been involved in representing clients in numerous intellectual property disputes involving trademarks, trade names, copyright, industrial design and patents. This includes successfully defending a trademark appeal on behalf of a major clothing and apparel brand at the Court of Appeal and successfully expunging a registered industrial design belonging to a third party on behalf of a cosmetic company. Both decisions allowed her clients to continue with the trading and commercialisation of their respective products.

Fluent in Mandarin and Cantonese in addition to English and Bahasa Malaysia, Ooi Ling actively conducts seminars in Mandarin in order to create and increase awareness on intellectual property rights among local associations, start-ups and companies.

She contributed to The International Comparative Legal Guide To: Trade Marks 2017 (6th edition) – A Practical Cross-border Insight into Trade Mark Work (Chapter 21 – Malaysia) and also attended the Training Course for IP Protection Lawyers, held in Japan organised by the Japan Patent Office.


  • Bachelor of Laws (Hons) (University of Malaya)


  • Advocate & Solicitor of the High Court of Malaya
  • Admitted to the Malaysian Bar: 25th June 2012
  • Registered Patent Agent (Malaysia) since 2016
  • Registered Trademark Agent (Malaysia) since 2019
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