Sri Lanka


sri lanka patent spruson

Overview of Sri Lanka

Capital: Colombo

Population: 21,481,334 (est. 2012)

Languages: Sinhala (official and national language), Tamil (national lagnuage), English

Area: 65,610 km²

Currency: Sri Lankan Rupee (LKR)

Legal System: Mixed legal system of Roman-Dutch civil law, English common law, and Jaffna Tamil customary law

Patent Practice Summary

Filing Statistics


Key Issues

  • All litigation and prosecution in English
  • Ranked 65th in the world for IP protection in the World Economic Forum’s Global Competitiveness Report 2013/2014


  • Infringement remedies – injunctions, damages, accounts of profits and other relief as the Court may deem just and equitable


  • National phase entry deadline for PCT applications in Sri Lanka: 30 months
  • Patentable subject matter – the following subject matter are not considered to be patentable subject matter:
    • Discoveries, scientific theories, mathematical methods;
    • Plants, animals and other microorganisms other than transgenic micro-organism and an essentially biological process for the production of plants and animals other than non-biological and microbiological processes;
    • Schemes, rules, or methods for doing business, performing purely mental acts or playing games;
    • Methods for the treatment of the human or animal body by surgery or therapy and diagnostic methods practiced on the human or animal body (provided however, any product used in any such method shall be patentable);
    • An invention which is useful in the utilisation of special nuclear material or atomic energy in an atomic weapon;
    • Any invention, the prevention within Sri Lanka of the commercial exploitation of which is necessary to protect the public order, morality including the protection of human, animal or plant life or health or the avoidance of serious prejudice to the environment
  • Voluntary Divisional applications possible

Other issues

  • No pre or post-grant opposition
  • Patent Term Extensions – not possible
  • Parallel importation – available under certain conditions

Filing Requirements in Sri Lanka




  • National Intellectual Property Office of Sri Lanka
  • World Intellectual Property Organization



  • Berne Convention for the Protection of Literary and Artistic Works
  • Nairobi Treaty on the Protection of the Olympic Symbol
  • Paris Convention for the Protection of Industrial Property
  • Patent Co-operation Treaty

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