A granted patent in Nepal gives the owner exclusive rights over the registered invention for seven years under the Patent, Design and Trademark Act 1965. The Department of Industry (DoI) issues the certificate, but you must preserve evidence, renew on time, and take action if others copy the invention.
Key Takeaways
A granted patent becomes enforceable after registration by the Department of Industry, but it lasts only seven years per term under the Patent, Design and Trademark Act 1965. It can be renewed twice, making post-grant planning essential for the full possible 21-year protection period.
- A patent certificate confirms that the DoI has registered your invention in Nepal.
- Your patent is valid for seven years and may be renewed twice for further seven-year terms.
- You should calculate renewal dates from the registration date stated on the certificate.
- Patent renewal in Nepal has a short filing window, followed by a limited late period.
- The DoI does not search markets or start patent enforcement Nepal action for you.
- A Nepali patent is national protection; it does not automatically cover India, China, or any other country.
- Keep the certificate, specification, claims, renewal records, and proof of commercial use together.
What rights does a granted patent provide in Nepal?
A granted patent gives you an exclusive legal privilege over the registered invention in Nepal for the current seven-year term. The DoI registers patents under the Patent, Design and Trademark Act 1965, so your strongest rights arise from the certificate, registered specification, and claims rather than from an idea alone.
In practical terms, you can object when another person commercially makes, uses, or sells an invention that falls within your registered patent scope without permission. A patent is a right to stop unauthorised conduct. It is not a guaranteed right to manufacture freely, because another person may hold an earlier right relevant to part of your product.
The specification explains how the invention works. The claims identify the legal boundary of protection. If a competing product does not fall within those claims, it may not infringe even if it performs a similar job. This is why the drafting work completed during patent registration in Nepal matters long after approval.
What should you do immediately after patent approval?
You should secure the registration certificate, record its seven-year expiry date, and compare your product against the registered claims as soon as the DoI grants the patent. These first actions create the evidence and calendar discipline needed for patent renewal Nepal and later enforcement.
- Check the certificate details. Confirm the owner’s name, invention title, registration number, and registration date. Raise any apparent record issue promptly with the DoI.
- Store the complete patent file. Keep the certificate with the filed specification, claims, drawings, correspondence, and any priority documents in one controlled record.
- Set two renewal reminders. Add the first and second renewal dates to your internal calendar. Use the registration date, not a launch date or foreign filing date.
- Document your own product. Retain dated photographs, packaging, invoices, manuals, technical drawings, and production records showing what you make and sell.
- Review competitor activity. Save advertisements, samples, catalogues, online listings, and trade-show material that may show copying. Do not make accusations before comparing the product with your claims.
How long does a granted patent last in Nepal?
A granted patent lasts seven years from the registration date and may be renewed twice for additional seven-year periods under the Patent, Design and Trademark Act 1965. The maximum available term is therefore 21 years, unlike a trademark registration, which may be renewed repeatedly in seven-year terms.
This finite term should shape your commercial plan. If your invention is likely to remain valuable after the patent ends, build customer trust, distribution strength, confidential know-how, and a registered trade mark while the patent is active. Patent rights end; a well-managed brand can continue.
Do not confuse a patent with an industrial design. A patent protects a new and useful invention, such as a technical process or functional machine improvement. Industrial design registration protects the appearance of a product, such as the visual form of a bottle, chair, or appliance casing.
When and how do you renew a patent in Nepal?
You renew a patent by applying to the Department of Industry within 35 days of the expiry of each seven-year term. A six-month late period may be available after expiry, but once that period passes, the patent is cancelled and the registered exclusive right ends.
There are two renewal points: one at the end of the first term and another at the end of the second term. A common mistake we see is recording only the first deadline. Put both dates in your company calendar as soon as the certificate arrives, especially if ownership or staff may change.
| Patent stage | Protection period | Action required | If the deadline is missed |
|---|---|---|---|
| Registration certificate issued | First seven-year term | Keep the certificate and calculate expiry | Rights continue only until the term ends |
| First renewal point | Years 7–14 | Apply within the regular renewal window | A limited late period may apply before cancellation |
| Second renewal point | Years 14–21 | Apply within the regular renewal window | Cancellation follows if the late period also expires |
| End of second renewed term | Maximum 21 years | Plan for post-patent competition | The invention enters the public domain |
Costs depend on the applicable government filing requirements, whether the record needs amendment, and the professional work needed to check documents and manage the deadline. For a current estimate, use the available IP Sewa tools or ask our team through our contact page. This article is general information, not legal advice for a particular renewal deadline.
Who handles patent enforcement in Nepal?
Patent enforcement Nepal begins with the patent owner, not with automatic action by the Department of Industry. The DoI registers industrial property and can hear matters within its authority, but it does not routinely inspect factories, online sellers, or shops for infringement after a seven-year patent registration is granted.
Start with a careful technical comparison. Put the relevant claim beside the suspected product or process and identify each feature that appears to match. Preserve dated evidence before alerting the other party. Product samples, invoices, screenshots, packaging, advertisements, and witness records can all become important.
A measured first response may involve a formal notice, discussion, or a request to stop the alleged use. Some disputes require a petition or further legal action. The right path depends on the claims, evidence, ownership record, and commercial risk. Our team can help you assess options through patent opposition and enforcement support.
What documents should a patent owner keep after registration?
A patent owner should retain the original certificate, specification, claims, drawings, renewal filings, and ownership documents throughout the DoI registration term. These records support renewal, prove what was registered, and help establish whether a competing product falls inside the protected technical scope.
- The original registration certificate and any officially issued duplicate.
- The final specification, claims, drawings, and amendments accepted during examination.
- Priority documents where a Paris Convention priority claim was used.
- Power of attorney, assignment, merger, or company-name records affecting ownership.
- Renewal applications, acknowledgements, and correspondence with the Department of Industry.
- Dated product records and evidence of suspected copying.
Foreign owners should also keep their Nepal agent details current. Nepal is not a member of the Patent Cooperation Treaty (PCT), so a foreign or international patent does not automatically become a Department of Industry patent. A direct national filing is needed, although Paris Convention priority may be relevant in the right circumstances. The World Intellectual Property Organization explains the international IP treaty framework.
What mistakes can weaken the value of a granted patent?
The most damaging mistakes are missing the 35-day renewal window, relying on the certificate without reviewing the claims, and accusing competitors without evidence. Because a Nepal patent ends after two renewals, owners should also prepare for lawful competition once the maximum 21-year period finishes.
Imagine a Pokhara workshop receives a patent certificate for a water-filter valve with a specific internal pressure-control arrangement. A rival later sells a filter that looks almost identical but uses a different arrangement. The workshop should not assume visual similarity proves infringement. It should compare the rival’s mechanism with the actual registered claims.
Another mistake is treating a patent as business-name protection. It is not. If the workshop sells its invention as “Himal Flow,” it should consider separate wordmark or logo registration for that brand. Trademark registration uses the 45-class NICE Classification system, while a patent is not filed in NICE classes. You can read the wider framework in our Nepal intellectual property law guide.
How does a granted patent fit into a wider IP plan?
A granted patent works best alongside brand, design, contract, and confidentiality measures because the DoI patent covers only the registered invention for up to 21 years. Separate rights may protect a product’s name, its appearance, confidential manufacturing know-how, or the commercial relationships around it.
For example, patent protection may cover a new agricultural device mechanism; industrial design registration may cover its distinctive outer casing; and a registered mark may cover the product name. Each right has a different purpose, term, and filing route. The official Department of Industry administers patents, designs, and trademarks under Nepal’s industrial property framework.
In short: approval is a major step, not the last step. Treat the registration certificate as the start of a working file: protect the evidence, calendar both renewals, check alleged copying against the claims, and build brand protection that can outlast the patent term.
People also search for
These related Nepal patent guides explain the filing stage, technical eligibility, renewal rules, and practical infringement questions that arise before and after a Department of Industry patent is granted.
- Patent registration in Nepal
- Patent application process in Nepal
- Patent renewal in Nepal
- Patent infringement in Nepal
- What can be patented in Nepal?
- How patent protection works in Nepal
- International patent filing from Nepal
If you have a granted patent, start by reviewing your certificate and renewal dates with our patent registration team. If your product also needs a name search, use the Nepal trademark database at IP Sewa trademark search, or contact our team for practical guidance on renewal or enforcement.














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