IP Registry
National Intellectual Property Office of Sri Lanka (NIPO)
Patent Registry · Trade Marks Registry · Industrial Design Registry — Colombo
Key Legislation
Intellectual Property Act No. 36/2003Consolidated IP Act
Patents Act20-yr term
Trade Marks Act10-yr renewable
Industrial Designs Act5-yr renewable, max 15 yrs
Patents
Patent Practice in Sri Lanka
Filing requirements, timelines, and key deadlines for patent protection in Sri Lanka.
Key Facts & Timelines
PCT memberYes — 30-month national phase
Conventional priority deadline12 months from first filing
Examination requestWithin 36 months of filing
Patent term20 years from filing date
Prosecution timeline3–4 years typical
Trademarks
Trademark Practice in Sri Lanka
Brand protection, filing procedures, and opposition windows under Sri Lanka's trade marks regime.
Key Facts & Timelines
Madrid ProtocolNot a member — direct filing only
Filing basisNice classification, single-class only
Opposition window3 months from publication
Registration term10 years, renewable
Industrial Designs
Design Protection in Sri Lanka
Protecting the visual appearance of your products under Sri Lanka's design registration framework.
Key Facts & Timelines
Paris Convention priority6 months from first filing
Initial protection5 years from registration
Maximum term15 years (2 renewals of 5 years)
Late renewal grace period6 months with surcharge
Our Services
What We Handle in Sri Lanka
S. Kumar & Co. provides end-to-end IP services in Sri Lanka with coordinated filing from our New Delhi headquarters.
Available Services
Patent Filing & ProsecutionTrademark RegistrationIndustrial Design ProtectionIP Portfolio ManagementIP Strategy & Consultation