The Patent Cooperation Treaty (PCT) and Nepal

Nepal is not a member of the Patent Cooperation Treaty (PCT), meaning you cannot file an international patent application designating Nepal. To obtain patent protection, you must file a national application directly with the Department of Industry under the Patent, Design and Trademark Act 1965.

Key Takeaways

• Nepal has not acceded to the PCT or the Madrid System for international IP filings.
• All patent applications must be filed directly with the Department of Industry in Kathmandu.
• The governing law remains the Patent, Design and Trademark Act 1965, not international treaties.
• Foreign applicants must appoint a local agent or representative to handle filing and prosecution.
• Patent terms last seven years from registration and are renewable for additional seven-year periods.
• Priority claims from foreign filings are possible within six months under Paris Convention principles.
• There is no automated route to extend a PCT application into the Nepali national phase.

Why doesn't the PCT apply to Nepal?

Nepal has never signed or ratified the Patent Cooperation Treaty administered by WIPO, so the international filing mechanism simply does not cover the country. While Nepal is a member of the Paris Convention and TRIPS, accession to the PCT requires separate domestic ratification that has not occurred. Consequently, there is no legal pathway to enter a "Nepal national phase" from a PCT application, regardless of how many other countries you have designated.

This distinction matters enormously for your global filing strategy. Many inventors assume that checking the box for "all designated states" in a PCT request automatically preserves rights everywhere. In reality, non-contracting states like Nepal fall outside that safety net entirely. If you want protection here, you must treat it as a completely separate parallel action rather than a downstream step of your international application. The WIPO PCT portal confirms the current list of contracting states, and Nepal is absent.

How do you file a patent in Nepal without the PCT?

You secure patent protection by submitting a national application directly to the Department of Industry following the procedures set out in the Patent, Design and Trademark Act 1965. This process is entirely domestic and operates independently of any international treaty system. Foreign applicants must engage a Nepal-based agent or legal representative to act on their behalf before the DoI, as the department does not accept filings directly from overseas addresses.

1. Conduct a preliminary patent search using our conflict checker tool to identify potentially conflicting prior art registered in Nepal.
2. Prepare the specification, claims, abstract, and drawings according to DoI formatting requirements and translate all documents into Nepali if necessary.
3. Execute a notarised Power of Attorney authorising your local agent to prosecute the application on your behalf.
4. File the complete application package with the Department of Industry and pay the prescribed government fees.
5. Respond to any examination objections raised by the DoI during substantive review of novelty and inventive step.
6. Monitor the Industrial Property Bulletin for publication and survive the 90-day opposition window to receive your certificate.

Each of these steps demands careful attention to local practice. Unlike PCT filings where the International Searching Authority handles much of the heavy lifting, the Nepali examination relies heavily on your own disclosure quality. A poorly drafted specification cannot be rescued later by referencing a PCT search report. Our team can help you prepare documents that meet DoI expectations; reach out via our contact page for guidance tailored to your invention.

Can you claim priority from a foreign patent application?

Yes, Nepal recognises priority claims under Paris Convention principles even though it is not in the PCT system. You may claim the filing date of an earlier application made in another convention country provided you file in Nepal within six months of that first filing date. This six-month window is shorter than the 12-month period typically associated with utility patents under the Paris Convention, reflecting specific provisions in Nepali law.

To validly claim priority, you must submit a certified copy of the original foreign application along with a verified English translation at the time of filing or shortly thereafter. The DoI examines whether the Nepali application corresponds substantially to the priority document. Missing this deadline means losing the earlier date entirely, which can be fatal if intervening disclosures exist. Always calculate your deadlines conservatively and instruct your agent well before the six-month mark expires.

What is the timeline and term for Nepali patents?

Patent registration in Nepal typically takes twelve to fourteen months from filing to certificate when unopposed, though exceptionally smooth cases may conclude in six to eight months. Once granted, the initial term lasts seven years from the registration date, and you may renew indefinitely for successive seven-year periods upon payment of renewal fees. Renewal must occur within thirty-five days of expiry, with a six-month grace period available subject to a late fee.

These timelines assume straightforward prosecution without significant objections or third-party challenges. Opposition proceedings can add considerable delay depending on complexity. Budget your commercialisation plans around the realistic twelve-to-fourteen-month baseline rather than hoping for best-case speed. For deeper context on patent duration and maintenance obligations, see our guide on patent renewal in Nepal.

What common mistakes should applicants avoid?

The most frequent error is assuming PCT designation covers Nepal, leading to missed deadlines and permanent loss of rights. Applicants often discover this gap only after the six-month priority window has closed, leaving them unable to claim the earlier filing date. Another widespread mistake involves inadequate Nepali-language documentation; machine translations of technical specifications regularly fail DoI scrutiny and trigger avoidable office actions that delay grant by months.

Failing to conduct a local prior art search before filing also creates unnecessary risk. Even if your invention cleared an international search, identical or similar technology may already be registered in Nepal's national database. Use our patent registration service to ensure comprehensive clearance before investing in prosecution costs. Additionally, some applicants neglect the use-it-or-lose-it requirement; non-use within one year of registration exposes your patent to cancellation proceedings initiated by competitors monitoring the bulletin.

How does Nepal fit into broader international IP strategy?

Treat Nepal as a standalone jurisdiction requiring its own dedicated filing track rather than an extension of your PCT portfolio. Coordinate timing carefully so your Nepali application aligns strategically with prosecutions elsewhere while respecting the independent six-month priority clock. Budget separately for local professional fees and government charges, which operate on a different structure than PCT-related expenses. Remember that enforcement also proceeds through national courts and the DoI's quasi-judicial division, not through any international tribunal.

For businesses entering the Nepali market, early direct filing provides tangible advantages over waiting for hypothetical treaty accession. First-to-file principles mean whoever reaches the DoI first secures rights regardless of prior use abroad. Monitor legislative developments through the Nepal Law Commission for any future changes to treaty status, but plan today based on existing law. Practical guidance on navigating the full application lifecycle is available in our article on the patent application process in Nepal.

In short, PCT Nepal coverage does not exist, and relying on international mechanisms will leave your inventions unprotected. Direct national filing with the Department of Industry remains the sole viable path, governed entirely by domestic statute and procedure. Start with thorough searching, engage qualified local representation, and respect strict priority deadlines to secure enforceable rights.

• International patent filing strategies from Nepal
• How patent protection works under Nepali law
• Conducting effective patent searches in Nepal
• Understanding patent costs and fee structures
• Patent infringement remedies and enforcement
• IP terminology glossary for Nepal applicants

Ready to protect your invention in Nepal? Begin with a comprehensive search using our trademark and patent database, then discuss your filing strategy with our team through our contact page. We can also provide detailed cost estimates via our fee calculator tool to help you budget accurately for national prosecution.