The PCT: One Patent Application, Worldwide

The Patent Cooperation Treaty (PCT) lets one international patent application begin protection efforts across participating countries, but it does not grant a worldwide patent. Nepal is not a PCT member, so protection in Nepal requires a direct filing with the Department of Industry under the Patent, Design and Trade Mark Act 1965.

Key Takeaways

• The PCT is a filing system administered by WIPO, not an international patent grant.
• Nepal is not a PCT contracting state, so Nepal cannot be designated in a PCT application.
• A PCT application can delay separate foreign national-phase decisions, usually from the earliest priority date.
• A Nepali inventor targeting Nepal must file separately at the Department of Industry.
• A foreign applicant can seek Nepal protection through direct national filing and, where available, a Paris Convention priority claim.
• The PCT international phase includes search, written opinion and publication; each national office still applies its own law.
• Our team can help with Nepal patent filing, priority documents and coordination with foreign patent professionals through IP Sewa’s contact team.

What is the Patent Cooperation Treaty?

The Patent Cooperation Treaty creates one coordinated filing route for patent applicants seeking protection in several participating countries. WIPO administers the system, but national and regional patent offices decide whether patents should be granted. The PCT therefore reduces duplicated early filings without creating one enforceable worldwide patent.

An international patent application records your invention once for the international phase. It normally contains a description, claims, drawings where needed and an abstract. An international search then identifies relevant prior art, meaning earlier public technical information that may affect patentability.

The search report and written opinion are useful planning tools. They can show weaknesses in novelty, inventive step or industrial applicability. They do not bind every national office. Each country can request amendments, translations, local representation and further examination under its domestic patent law.

Read WIPO’s explanation of the Patent Cooperation Treaty system before choosing an international route. The treaty is best understood as a coordinated first stage, not as a substitute for national patent applications.

Is Nepal part of the PCT?

Nepal is not a contracting state to the Patent Cooperation Treaty, so a PCT application cannot designate Nepal or enter a Nepali national phase. The Nepal target must be handled directly through the Department of Industry under the Patent, Design and Trade Mark Act 1965.

This affects both Nepali and foreign applicants. A PCT application filed elsewhere does not automatically protect an invention in Nepal. Likewise, a first patent application filed at Nepal’s DoI cannot itself be converted into a Nepal PCT filing.

Nepal is also outside the PCT’s international administrative route. If Nepal matters commercially, treat Nepal as a separate national filing in your patent plan. DoI is the registering authority and examines, publishes and registers patents under Nepal’s Industrial Property framework.

The Department of Industry’s official information is available through the DoI website. Procedures and filing practice can change, so check the current requirements before signing a priority strategy.

How can a Nepali applicant use a PCT route?

A Nepali applicant may use a PCT strategy only where the applicant has a valid filing connection with a PCT contracting state. That usually means working with qualified foreign patent counsel for an eligible first filing or receiving office, while filing Nepal separately if Nepal is a target.

There is no general rule that a Nepali founder can simply submit a PCT application from Nepal. Eligibility depends on the applicant’s nationality or residence, the receiving office, and the treaty rules in force. A foreign patent agent should confirm this before the first filing.

One possible structure is an initial filing in a country where the applicant is eligible, followed within the priority period by a PCT application claiming that earlier date. The applicant can later select participating countries for national-phase entry. Nepal remains outside that selection.

Another structure is direct filing in Nepal and separate direct filings abroad under the Paris Convention, where the legal requirements for priority are met. This can suit an invention whose commercial market is Nepal plus only one or two foreign countries.

What are the steps in PCT patent filing?

PCT patent filing follows an international phase and a later national phase, while Nepal follows its own direct procedure. The key dates begin with the earliest valid priority filing. Missing a priority or national-phase deadline can permanently affect available protection.

1. Define the invention and ownership. Record the inventors, applicant, assignment position and technical contribution before filing.
2. Choose the first filing route. Confirm whether Nepal, a foreign country or an eligible PCT receiving office should receive the first application.
3. Prepare the specification. Draft the description and claims carefully. The claims define the legal boundary you later ask each patent office to protect.
4. File within the priority period. If claiming an earlier application, provide the correct priority details and supporting certified documents.
5. Submit the PCT application where eligible. The application enters the international phase and receives an international filing date if accepted.
6. Review the international search. Study the prior-art report and written opinion with patent counsel. The result may support, narrow or reshape the foreign filing plan.
7. Track international publication. WIPO generally publishes the application around 18 months from the earliest priority date, subject to the treaty procedure.
8. Select national-phase countries. Before the applicable deadline, appoint local agents, prepare translations and satisfy each selected office’s formal requirements.
9. File Nepal separately. Submit the Nepal application to the DoI if Nepal is a target. Do not treat PCT publication as a Nepal grant or Nepal filing.
10. Prosecute each application. Respond to examiner queries, pay required charges and follow each office until grant, refusal or withdrawal.

Which documents are needed for the international and Nepal filings?

Patent filings need a clear specification, claims and ownership record, while Nepal filings may need notarised authority and priority evidence. Exact documents depend on the applicant, inventors, priority claim and receiving office, so prepare the file before the deadline.

Core technical documents

• Patent application form or PCT request form.
• A full specification describing the invention and how to perform it.
• Claims defining the protection sought.
• Drawings or figures where they explain the invention.
• An abstract summarising the technical disclosure.

Ownership and authority documents

• Inventor and applicant details.
• Assignment or ownership evidence where the applicant is not the inventor.
• Notarised Power of Attorney for the Nepal filing, where representation is required.
• Board resolution or corporate authorisation for a company applicant.
• Certified or notarised copy of the earlier foreign application or filing receipt for a priority claim.
• Certified or notarised foreign patent registration documents where relevant to a foreign applicant’s Nepal filing.

Foreign documents may need English versions or certification suitable for the DoI. Ask the Nepal-based agent to confirm the form, signatures, witnesses, notarisation and translation requirements before submission.

How long does a PCT patent strategy take?

A PCT strategy usually gives the applicant time to assess search results before foreign national-phase filings, but it does not remove national deadlines. Publication commonly occurs around 18 months from priority, and national-phase timing is commonly measured at 30 or 31 months.

Nepal’s own patent process is not the PCT timeline. The DoI examines the application, publishes an accepted patent for public information, allows an opposition period of 35 days, and issues a certificate if the matter proceeds. A straightforward Nepal patent application may still take substantial time in practice.

What does PCT patent filing cost?

PCT patent filing costs vary by receiving office, search authority, translations, foreign agents and the countries selected for national phase. Nepal adds separate DoI government and professional costs. The sensible budget is therefore a country-by-country plan, not one supposed worldwide filing fee.

The international phase may include a filing charge, search charge and receiving-office charge. Later, each national office may require its own filing, translation, examination, representation and renewal costs. A PCT filing can postpone those decisions, but it does not make them disappear.

For Nepal, the total depends on technical drafting, document certification, applicant type, priority material and whether examination questions or opposition arise. For a current estimate, use the patent filing consultation route rather than relying on an old online figure.

What legal rules apply to a Nepal patent?

Nepal’s Patent, Design and Trade Mark Act 1965 governs direct patent registration at the Department of Industry. The Act provides the Nepal procedure for application, examination, publication, opposition, registration and renewal; the PCT cannot replace those domestic steps.

The Nepal patent term is seven years and can be renewed twice for additional seven-year periods, subject to the Act and renewal requirements. This is different from assuming that a foreign PCT filing creates a Nepal right or controls Nepal’s patent term.

International planning may also involve the Paris Convention, which can support priority claims where its conditions are met. Paris priority and PCT filing are related but different tools. The PCT is not a treaty granting priority without a valid first filing.

For the statutory text, consult the Nepal Law Commission’s official legal resources. This article is general information, not legal advice on patentability, foreign filing eligibility or a particular deadline.

What mistakes should applicants avoid?

Applicants often lose options by treating the PCT as a worldwide patent or leaving Nepal out of the filing calendar. Careful priority management, technical drafting and country selection matter more than simply submitting an international application.

• Assuming Nepal is covered. A PCT filing does not designate Nepal. Put a direct DoI filing on the plan.
• Disclosing too early. Public disclosure can damage novelty under applicable law. Take advice before demonstrations, sales or online launches.
• Using a weak first specification. Later claims need support in the original disclosure. Do not treat the first filing as a rough placeholder.
• Choosing a receiving office without checking eligibility. A Nepali residence alone does not automatically make every PCT receiving office available.
• Ignoring inventorship and ownership. Confirm who invented the subject matter and who owns the application.
• Missing translations and local representation. National-phase rules are country-specific and often require local patent professionals.
• Confusing a search report with grant. A favourable written opinion is helpful, but each patent office makes its own decision.
• Failing to renew Nepal protection. A granted Nepal patent needs attention during its renewable terms.

What does a realistic Nepal example look like?

Imagine “Himalayan Heat Recovery,” a Kathmandu engineering startup that develops a low-energy food dehydrator. The founders want Nepal protection and may later sell in selected foreign markets. Their PCT plan and Nepal plan should run side by side, not as one substitute filing.

They first record the inventors, ownership and technical disclosure. If they file directly at the DoI, they can then assess direct foreign filings under an available Paris Convention priority route. If they are eligible to file through a PCT contracting state, they may use a PCT application for selected foreign countries.

Either way, the startup must file Nepal directly if Nepal is commercially important. It should not wait for foreign search results if waiting could affect a Nepal deadline. It should also avoid public product demonstrations before receiving patent advice.

When is direct filing better than a PCT application?

Direct filing may be better where Nepal is the only target, where only a small number of foreign countries matter, or where the applicant is not eligible for the intended PCT receiving office. A PCT route is more useful when several participating countries remain realistic targets.

A PCT application also involves strategic work. You must decide whether the invention has enough commercial value to justify national-phase prosecution in each country. Entering every available country is rarely a sensible plan.

For a Nepal-only invention, a direct DoI patent application is simpler. For a Nepal-plus-foreign portfolio, use a written country plan showing priority date, filing route, translation needs, agents and renewal duties. IP Sewa can help with the Nepal part and coordinate information for foreign counsel through its patent registration service.

What should you do before filing an international patent application?

Before filing an international patent application, confirm patentability, ownership, priority dates and the countries that justify protection. Nepal requires its own DoI application, while the PCT can organise only the participating-country part of a wider foreign patent filing plan.

• Write down the earliest disclosure and filing dates.
• Identify every inventor and the intended applicant.
• Run a prior-art search and review similar patent publications.
• Prepare claims with support in the description.
• Check whether a Paris Convention priority claim is available.
• Confirm PCT eligibility with an authorised foreign patent professional.
• Reserve a separate deadline and document set for Nepal.
• Budget for international, national and Nepal professional work separately.
• Keep renewal dates after grant in a central register.

In short: the PCT is a useful international filing framework, not a worldwide patent. Nepal is outside the treaty. If you need Nepal protection, file directly with the Department of Industry under the Patent, Design and Trade Mark Act 1965. If foreign protection also matters, select the PCT or direct Paris Convention route after checking eligibility, priority and commercial value.

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Before committing to a PCT patent filing, search existing Nepal records where relevant, review the application route, and speak with a professional. Use the IP Sewa tools, then contact our team for help with a direct Nepal patent application and foreign-filing coordination.