Patent Assignment Agreement: Template (Nepal)

A patent assignment agreement is the legal contract that transfers ownership of a registered patent from one party (the assignor) to another (the assignee) in Nepal. The Department of Industry (DoI) must record the assignment before the new owner can enforce the patent rights. Without a properly executed agreement and DoI recording, the transfer has no legal effect against third parties.

Key Takeaways

• A patent assignment is a permanent transfer of ownership — different from a licence, which only grants permission to use.
• The Department of Industry (DoI) must record the assignment; until recorded, the original patentee remains the legal owner on the register.
• The governing law is the Patent, Design and Trade Mark Act, 1965 (PDTA) — Sec. 21D governs transfer of ownership.
• The agreement must be in writing, signed by both parties, and notarised, with a certified copy filed at the DoI.
• A government fee applies for recording the assignment; professional fees vary with complexity.
• You cannot assign a pending patent application in Nepal — only a granted patent can be transferred.
• Foreign assignees must file through a Nepal-based agent or representative with a valid Power of Attorney.

What exactly is a patent assignment in Nepal?

A patent assignment is the permanent transfer of all ownership rights in a granted patent from the current owner (assignor) to a buyer or recipient (assignee). Under the Patent, Design and Trade Mark Act, 1965, Sec. 21D, a patentee may transfer ownership of the patent to another person. The transfer must be in writing and recorded with the Department of Industry. Once recorded, the assignee steps into the shoes of the original patentee — they can make, use, sell, license, and enforce the patent in their own name.

This is fundamentally different from a patent licence. A licence grants permission to use the invention under certain conditions — it doesn't transfer ownership. A common mistake we see is businesses signing a licence agreement when they actually intended a full sale. If you want the patent to belong to your company, not the inventor personally, you need an assignment, not a licence.

Why would you need a patent assignment agreement?

The most common scenario in Nepal is a company acquiring a patent from an individual inventor — perhaps the founder developed the technology before incorporating, or a university researcher assigned rights to a spin-off. Assignments also happen during mergers and acquisitions, when one company buys another's patent portfolio, or when settling a dispute where patent ownership changes hands as part of the resolution.

Another practical trigger: investors and lenders often require patents to be held in the operating company's name, not the founder's. If the patent sits in an individual's name, due diligence flags it. A properly drafted and DoI-recorded assignment fixes that. Without it, the company cannot sue for infringement because it isn't the registered proprietor.

Which law governs patent assignments in Nepal?

The Patent, Design and Trade Mark Act, 1965 (PDTA) governs all patent matters in Nepal, including assignments. The key section is Sec. 21D, which states that a patentee may transfer ownership of the patent, and that the transfer must be submitted to the Department of Industry for recording. The Act does not prescribe a specific form for the assignment agreement itself, but DoI practice requires a written, notarised instrument — in practice, a deed of assignment or assignment agreement, accompanied by an application for recordal.

Nepal is a member of the Paris Convention and TRIPS, and while these treaties don't dictate the domestic assignment process, they reinforce the principle that patent rights are transferable property. The World Intellectual Property Organization (WIPO) provides model frameworks, but the binding requirements are purely Nepal-specific — governed by the PDTA and DoI administrative practice. You can read the full statutory text on the Nepal Law Commission website.

What should a patent assignment agreement include?

A DoI-compliant patent assignment agreement in Nepal should cover these essential elements, though the PDTA doesn't mandate a statutory form:

1. Parties: full legal names, addresses, and citizenship or company registration numbers of assignor and assignee.
2. Patent identification: the patent registration number, title of the invention, date of grant, and the DoI certificate reference.
3. Consideration: the purchase price or value exchanged — even if nominal, a value must be stated for stamp-duty purposes.
4. Transfer clause: an unequivocal statement that the assignor transfers all right, title, and interest in the patent to the assignee.
5. Representations and warranties: the assignor confirms they are the lawful owner, the patent is valid and in force, and no encumbrances or licences exist that haven't been disclosed.
6. Further assurance: a promise by the assignor to sign any additional documents the DoI requires to complete the recordal.
7. Governing law and jurisdiction: Nepali law, with disputes subject to Nepali courts — essential because the patent is a Nepal-granted right.
8. Execution block: signatures of both parties, witnessed and notarised.

A practical note: if the patent was developed by an employee, also have a separate employment or assignment-of-inventions agreement confirming the employer owns the invention from the start. This prevents disputes about whether the assignor actually had title to transfer.

How do you record a patent assignment with the DoI?

The assignee — or their Nepal-based agent — files the assignment documents with the Foreign Investment and Technology Transfer Section of the Department of Industry. The DoI examines the documents, and if satisfied that the assignment is valid and the patent is in force, records the new owner on the patent register. An updated registration certificate may then be issued reflecting the assignee's name.

1. Execute the assignment agreement: both parties sign; signatures must be witnessed and the document notarised.
2. Translate if needed: if the agreement is in English, the DoI generally accepts it. Documents in other languages need a notarised Nepali translation.
3. Prepare the DoI application: a formal request letter or prescribed form seeking recordal of the assignment, signed by the assignee or their agent.
4. Attach supporting documents: the original or certified copy of the assignment agreement, Power of Attorney (if filed through an agent), patent certificate, and company registration documents if the assignee is a company.
5. Pay the government fee: the DoI charges a fee for recording an assignment. Our fee calculator can help you understand the cost structure, though you'll want to contact us for the current assignment-specific figure.
6. Submit and follow up: file everything at the DoI. Processing takes several weeks. Once recorded, request a confirmation or updated certificate for your records.

Documents required for a patent assignment in Nepal

The DoI typically requires these documents, drawn from standard practice under the PDTA and DoI administrative requirements:

• Original patent assignment agreement (notarised, signed by both parties with witnesses).
• Notarised Power of Attorney if the assignee or assignor is filing through a Nepal-based agent.
• Certified copy of the patent registration certificate.
• Company registration certificate and board resolution (if the assignee is a Nepali company).
• Tax clearance certificate (for domestic entities — DoI practice sometimes requests this).
• Application letter addressed to the Director General of the DoI requesting recordal of the assignment.
• If the assignor is a foreign entity, a notarised copy of the home-country incorporation certificate or equivalent.

Document requirements can shift slightly with DoI practice. Our team can help you prepare the complete set — reach out through our contact page and we'll confirm the current checklist before you file.

Timeline: how long does recording an assignment take?

Recording a patent assignment with the DoI typically takes 4 to 8 weeks from the date of filing a complete application, assuming no objections or queries from the examiner. If the DoI raises queries — for example, about the chain of title or the sufficiency of the notarisation — the timeline extends. The PDTA doesn't prescribe a statutory deadline for the DoI to act on assignment recordals, so the process moves at administrative speed.

You should factor in preparation time separately: drafting the agreement, getting signatures notarised (especially if one party is abroad), and gathering supporting documents can take two to four weeks before you're ready to file. In practice, plan for the whole process — from deciding to assign to having the DoI register updated — to take two to three months.

Cost factors for a patent assignment in Nepal

The total cost has two components: the government fee charged by the Department of Industry for recording the assignment, and the professional fees for drafting the agreement, notarisation, translation if needed, and filing assistance. The government fee is a fixed amount per patent — it doesn't scale with the patent's value. Professional fees depend on the complexity of the transaction: a straightforward sale between related parties costs less than a contested or multi-patent assignment with detailed warranties and indemnities.

If the assignee is a foreign entity, additional costs arise: notarisation and apostille or consular legalisation in the home country, plus agent fees in Nepal since foreign applicants must file through a local representative. For a current government-fee figure and a tailored cost estimate, use our fee tools or reach out directly on our contact page — our team can give you a breakdown within a day.

Common mistakes to avoid when assigning a patent in Nepal

In our experience helping clients with patent transfers, a few pitfalls come up repeatedly. First, not recording the assignment with the DoI. The parties sign the agreement and consider it done — but under Nepali law, the registered patentee is the only entity that can enforce the patent. If the DoI register still shows the old owner, the new owner has no standing to sue. A signed agreement sitting in a drawer doesn't change that.

Second, assigning a patent application instead of a granted patent. The PDTA doesn't provide a clear mechanism for transferring pending applications — only granted patents under Sec. 21D. If the patent hasn't been granted yet, the safest route is to wait for registration, then assign it. Third, vague identification of the patent. An agreement that says "all patents owned by the assignor" without listing registration numbers creates ambiguity. The DoI needs specific patent details to process the recordal. Finally, ignoring stamp duty. Nepal requires stamp duty on certain instruments, and an undervalued or unstamped agreement can cause the DoI to reject the filing.

A realistic Nepal example: university spin-off acquires the patent

Imagine Dr. Sharma, a researcher at a Kathmandu university, developed a water-filtration membrane and obtained a Nepali patent in his own name. Two years later, he co-founds "CleanFlow Nepal Pvt. Ltd." with investors. The company needs to own the patent — not Dr. Sharma personally — to raise funding and commercialise the product.

Dr. Sharma (assignor) and CleanFlow Nepal (assignee) execute a patent assignment agreement. It identifies the patent by its DoI registration number and title, states the consideration (shares in the company plus a cash payment), and includes a warranty that the patent is valid and unencumbered. Both parties sign before a notary in Kathmandu. CleanFlow's IP agent files the notarised agreement, a Power of Attorney, the patent certificate, and the company's registration documents with the DoI's Foreign Investment and Technology Transfer Section. Six weeks later, the DoI records the assignment and issues an updated certificate showing CleanFlow Nepal as the patentee. The company can now license the technology to manufacturers and enforce its rights.

Can a foreign entity be the assignee?

Yes — a foreign company or individual can receive an assigned patent in Nepal. The process is the same, but the foreign assignee must file through a Nepal-based agent holding a valid Power of Attorney. The assignment agreement and supporting documents from the foreign party must be notarised in the home country and, where applicable, legalised or apostilled. Nepal is not a member of the Hague Apostille Convention, so consular legalisation at the Nepali embassy in the assignor's country is sometimes needed. Foreign ownership of a Nepali patent doesn't trigger any additional regulatory approval from the DoI, but if the patent covers technology in a regulated sector — pharmaceuticals, for instance — other government clearances may apply. Our team can help you navigate this — get in touch and we'll confirm the current requirements for your jurisdiction.

In short, a patent assignment agreement in Nepal is a written, notarised contract that permanently transfers patent ownership from assignor to assignee, and it must be recorded with the Department of Industry to have legal effect. The process takes about two to three months end-to-end, requires specific supporting documents, and involves both a government recording fee and professional costs. Getting the agreement right — with clear patent identification, proper notarisation, and complete DoI filings — is the difference between a clean transfer and a rejected application. If you're preparing to assign a patent, or acquiring one, search the patent register first to confirm the current owner and status, then speak with our team — we'll help you draft, notarise, and file the assignment correctly.

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