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Patents in Sri Lanka

Sri Lanka is member of both Paris Convention as well as PCT, therefore, it is possible to file Conventional Patent Application as well as PCT national phase Application in Sri Lanka. The time frame of filing PCT National Phase in Sri Lanka is 30 months from date of earliest priority. For Conventional filing the deadline for filing application is 12 months from date of earliest priority.

Patent filing requirements in Sri Lanka

  1. Name, address and nationality of the Applicant (s).
  2. Name, address and nationality of the Inventor(s).
  3. Complete Specification in English (comprising description, claims, abstract, formal drawings)
  4. Details of priority applications (priority number, date and country of origin); Certified copy of priority document (within 3 months of filing of Application)
  5. A verified/notarised English translation of the priority document, if in any language other than English
  6. Statement justifying the Applicant’s rights to the patent, if applicant is different from inventor.
  7. Power of Authority (executed in presence of two witnesses, notarisation or legalisation not required)

Various Stages of Patent prosecution in Sri Lanka:

  1. Filing of Patent Application
  2. Preliminary Examination
  3. Publication of Patent Application in around 18 months from priority date
  4. Acceptance or rejectionIssuance of Letter Patent document
  5. Payment of renewal fee to keep the Patent in force

Term of Patent/  Renewal of Patent in Sri Lanka:

The total term of Patent is only 20 years.

News & Updates

Recent Activity

Date : May 20, 2017
Location: Barcelona Spain

INTA 139th Annual Meeting

INTA 139th Annual Meeting was held in Barcelona Spain from 20th to 24th May 2017

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