Patent Search in Nepal Before You File (2026)

Conduct a patent search in Nepal before filing with the Department of Industry (DoI). A prior-art search checks whether your invention is new under the Patent, Design and Trademark Act 1965. Allow about 12–14 months for a typical unopposed patent process, but search and keep the invention confidential first.

Key Takeaways

A patent search in Nepal tests novelty before the DoI examines your application. It should cover Nepalese records, international patent documents, technical publications and public disclosures. Because Nepal is not part of the PCT, an international filing route does not replace a direct Nepal application or a careful prior-art review.

• Search before you spend time and money preparing a full patent specification.
• Prior art can include patents, journals, websites, product sales, demonstrations and public use.
• Search the DoI record as well as international patent databases.
• Use technical classifications and several wording choices, not one exact keyword.
• Keep prototypes and technical details confidential until you file.
• A search estimates patentability; it does not guarantee that the DoI will grant a patent.
• A freedom-to-operate review is different from a novelty or prior-art search.

What is a patent search in Nepal?

A patent search is a structured review of earlier technical disclosures against the features of your proposed invention. A prior-art search asks whether the invention was available to the public before your filing date. It is not limited to granted patents. Published applications, research papers, catalogues, websites and public use may also matter.

The search is an early decision tool. It may show that a core feature already exists, or that your combination has a genuine difference. It can also help a patent professional write clearer claims, which define the legal boundary you want the patent to protect.

Why should you check whether an invention is new?

Check whether an invention is new because the DoI examines whether a patent proposal is new and useful under Nepal’s Patent, Design and Trademark Act 1965. If earlier public material discloses the same invention, the application may fail on novelty. Commercial value alone cannot turn an old technique into a new patentable invention.

Nepal follows a first-to-file approach. In practice, the first valid application matters more than who first thought of an idea. A search does not replace prompt filing, but it helps you avoid filing an invention that an earlier document already describes.

Novelty is also broader than local novelty. A relevant disclosure from another country can affect a Nepal application. That makes an international search essential, even if your product will be made and sold only in Kathmandu, Pokhara or Biratnagar.

What counts as prior art against your invention?

Prior art means technical information made available to the public before the relevant filing date. It can include an earlier patent or application, a scientific article, a manual, a product page, a conference presentation, a public demonstration, a sale or ordinary public use. The key issue is public availability, not the country where it appeared.

Your own disclosure can create a serious problem. A public product launch, online video, trade fair demonstration or sale may reveal the invention before you apply. Do not assume that being the inventor protects the filing. Treat confidentiality as part of the patent plan.

Use a written confidentiality agreement before sharing technical details with a manufacturer, investor or consultant. Limit access to the information and keep dated records of development. These steps do not make an old invention new, but they reduce the risk of avoidable self-disclosure.

Where can you search for Nepal patent prior art?

Search Nepal records through the Department of Industry and search global patent collections for a complete first review. The DoI is Nepal’s patent-registering authority. WIPO’s official patent information resources can help you find international documents, while specialist databases can provide wider keyword, citation and classification searches.

Nepal is not a member of the Patent Cooperation Treaty, or PCT. A PCT application therefore does not automatically give patent protection in Nepal. An applicant seeking Nepal protection must file directly with the DoI, usually through a Nepal-based representative where required.

Do not confuse IP Sewa’s public trademark database with a patent register. The Nepal trademark database search is useful for brand names and logos, not for deciding whether a technical invention is new.

Which patent databases and search methods work best?

Use keyword, inventor, applicant, citation and classification searches together. WIPO PATENTSCOPE is a useful international starting point, but no single database contains every disclosure. Search synonyms, older terminology, spelling variants and the words used by competitors. Then inspect the cited documents and classifications attached to the closest results.

Patent documents often describe the same item in technical language. A “solar food dryer” might be described as a thermal cabinet, drying chamber or solar-assisted dehydration apparatus. Search the function, components, materials and result separately.

Classification codes help you widen the search. The International Patent Classification, or IPC, groups inventions by technical subject. Start with a broad keyword result, record its IPC codes, and search those codes with your most important feature terms.

How do you run a patent search before filing in Nepal?

Run a patent search in a repeatable order: define the invention, list its essential features, search different terms, review the closest documents and record your conclusion. This approach supports a later patent application because the specification and claims can address the strongest prior-art references instead of ignoring them.

1. Describe the invention. Write down the problem, the proposed solution, the parts or steps, and the technical result. Separate essential features from optional improvements.
2. Build a search vocabulary. List synonyms, abbreviations, older names, component terms, materials, functions and industry terms. Search each important feature alone and in combinations.
3. Search Nepal records. Check available DoI patent information and note similar applicants, titles, dates and technical subjects. Ask the DoI or a representative about records that are difficult to access.
4. Search international collections. Use WIPO PATENTSCOPE and other established patent databases. Search by keywords, IPC codes, inventor, applicant and citations.
5. Read the full documents. Do not rely on a title or abstract. Compare every essential feature with the claims, description, drawings and publication date.
6. Record and assess the results. Save document numbers, dates, links, relevant passages and your feature comparison. A patent professional can then assess novelty and claim scope.
7. Choose the next step. File promptly if the search supports novelty, refine the technical solution if a close document appears, or reassess the project before committing to drafting.

What documents should you prepare for a patent search?

Prepare a plain-language invention summary, drawings or photographs, development notes and any known disclosure dates. Include the problem, solution, components, process steps and technical advantage. These materials let a searcher separate the invention’s essential features from details that do not affect novelty.

If you already found similar patents, collect their publication numbers and relevant claims. If you are claiming priority from a foreign application, keep the certified or notarised foreign filing receipt and related papers ready for the Nepal application. A priority claim has its own documentary requirements.

Search evidence should be organised in a simple table: document, publication date, matching feature, difference and risk. Keep copies of important documents because online records can change, move or become difficult to retrieve later.

How should you read a close patent result?

Read a close result against the whole proposed invention, not just one matching part. A document may show the same battery, sensor or housing but not the claimed combination. Compare the essential features, technical relationship and result, then check whether the document was public before your relevant filing date.

An abstract is a useful screening aid, not the final answer. Patent claims can be broad, narrow or written in unfamiliar terms. A professional opinion should identify which documents matter and how they affect the claims you may actually file.

What is the difference between a novelty search and an FTO search?

A novelty search asks whether your invention appears new. A freedom-to-operate, or FTO, search asks whether making, using or selling a product could infringe another person’s patent rights. The two reviews may use similar databases, but they answer different business questions and should not be treated as interchangeable.

A product may be new enough for your own patent and still use a protected feature owned by someone else. If commercial launch is near, consider a separate FTO review. Our guide to patent infringement in Nepal explains why that distinction matters.

Can you do a patent search yourself?

You can perform an initial patent search yourself, especially to find obvious earlier documents and learn the technical field. Free databases are useful for screening, but they cannot promise complete coverage or give a final legal opinion. Search quality depends on your terms, classifications, dates, languages and ability to read claims.

For a serious filing, professional review adds value in three places: building a search strategy, analysing the closest documents and shaping claims around real technical differences. Our team can help with patent registration in Nepal, including the search and filing decisions that come before the application.

What does a patent search cost in Nepal?

The total cost depends on the search depth, technical complexity, number of databases, language coverage, document review and whether you need claim drafting or a wider FTO assessment. Government charges and professional fees are separate. A basic screening search is not the same service as a written, claim-focused patentability opinion.

Do not choose a search only by its lowest quoted figure. Ask what records will be checked, whether citations and classifications are reviewed, what written output you receive and whether the search includes Nepal records. For a current assessment, send the invention summary through our patent consultation contact page.

What happens after the prior-art search?

After the search, decide whether to file, refine or stop. If the invention remains promising, prepare the specification and claims, then submit the application to the DoI. The DoI examines whether the invention is new and useful. If accepted, it is published for public information, and interested persons may oppose within 35 days.

If no valid objection prevents registration, the patent is registered and a certificate is issued after the applicable registration step. The typical unopposed process takes about 12–14 months. Six to eight months is a favourable smooth-case estimate, not the normal promise.

A Nepal patent lasts seven years and may be renewed twice for additional seven-year periods, giving a possible maximum of 21 years. Renewal dates matter. A missed renewal can put the right at risk.

What are the common patent-search mistakes in Nepal?

Common mistakes include searching only Nepal, using one phrase, reading only abstracts, ignoring publication dates, and treating a search result as a legal conclusion. Another frequent error is sharing a prototype publicly before filing. These gaps create false confidence and can weaken both the application and later commercial planning.

• Searching only exact wording: use synonyms, technical terms and classification codes.
• Checking only granted patents: include published applications and non-patent literature.
• Ignoring dates: confirm when each document became public and review priority information.
• Stopping at the title: compare claims, drawings, description and technical relationships.
• Confusing novelty with FTO: a new invention can still use another patent’s protected feature.
• Disclosing too early: keep demonstrations, sales and online posts private until filing.
• Assuming PCT coverage: Nepal requires a direct national filing because it is outside the PCT.

What does a Nepal patent search look like in practice?

Imagine a Nepali startup developing a solar-powered cabinet that dries herbs during monsoon weather. Its founder should search “solar dryer,” “dehydration cabinet,” airflow control, humidity sensing and related IPC codes. The team should compare the complete arrangement, not abandon the idea because one foreign patent uses a similar cabinet.

The search file should show which documents disclose the cabinet, solar heating, airflow path and humidity control. If one document contains every essential feature, the team should obtain advice before filing. If the combination differs, the claims can focus on that technical arrangement.

This is a realistic working example, not a prediction that the product is patentable. Only a full review of the actual invention and relevant documents can support that conclusion.

What should foreign inventors know before searching Nepal?

Foreign inventors must plan a direct Nepal filing rather than rely on PCT protection. A foreign patent application or registration may support a priority claim or document request, but it does not automatically protect the invention in Nepal. Use a Nepal-based representative where required and preserve certified or notarised papers.

Paris Convention priority may be available where the legal conditions are met. Priority does not remove the need to search. It changes the relevant filing position, so give your representative the foreign filing details before preparing the Nepal application.

What is the legal basis for a Nepal patent search?

The Patent, Design and Trademark Act 1965 governs patents and assigns registration work to the Department of Industry. The DoI examines whether an invention is new and useful, publishes accepted matters, allows a 35-day opposition period and issues the certificate after registration. Review the Nepal Law Commission’s legal materials and obtain advice on your facts.

The Act does not turn a database search into an official patentability certificate. A search is evidence for decision-making. The DoI remains the authority that examines the application, considers objections and decides registration under the applicable Nepal process.

In short, how should you check an invention is new?

Keep the invention confidential, define its essential features, search Nepal and international records, use synonyms and IPC classifications, read the closest documents fully, and record publication dates. Then obtain claim-focused advice before filing directly with the DoI. A careful search cannot promise a patent, but it can prevent avoidable filing mistakes.

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Start with a confidential invention summary and review the available IP tools for early research. Our team can help you assess prior art and prepare patent registration in Nepal; contact IP Sewa for a practical review. This article is general information, not legal advice.