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Innovation knows no borders — and neither should your patent protection. If your invention has global commercial potential, securing patent rights in multiple countries is not just a strategic move, it is a business necessity. Veralex provides comprehensive international patent filing services, helping inventors, research institutions, and companies navigate the complex landscape of global patent systems with clarity and expertise.



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The Patent Cooperation Treaty (PCT), administered by the World Intellectual Property Organization (WIPO), provides the most efficient mechanism for seeking patent protection internationally. With a single PCT application, an inventor can simultaneously seek patent protection in over 150 contracting states.
• Single filing date — establishes an international priority date in all designated countries
• 18-month delay before entering national phases — time to assess commercial viability before incurring national fees
• International Search Report (ISR) — provides an early assessment of patentability
• Optional International Preliminary Examination — further evaluates the invention before national phase entry
• Flexibility to select countries at the national phase stage (30/31 months from priority)

Navigating the patent system doesn't have to be complicated. Here's exactly how we take your invention from idea to grant — step by step.
File a PCT application with the Indian Patent Office (as a receiving office) or directly with WIPO

An International Searching Authority (ISA) conducts a search and issues an International Search Report (ISR) and Written Opinion on patentability.

The application is published in the PCT Gazette at 18 months from priority.

A more detailed patentability evaluation.

At 30 months (31 months for some countries) from the earliest priority date, the application must be entered into the national phase in each designated country.

Each national or regional patent office examines the application independently.




The European Patent Office (EPO) is a regional patent granting authority under the European Patent Convention (EPC). A single European patent application can grant protection in up to 44 EPC member states — including the major economies of Germany, France, the UK, Italy, Spain, and others — through a single grant procedure. After grant, the European Patent must be validated in each desired EPC member state (with associated translation and validation fees) to have legal effect in that country.
Bangladesh is an important emerging market in South Asia. Patent protection in Bangladesh is governed by theIn recent years, Bangladesh has witnessed steady industrial growth, making it a strategically important jurisdiction for patent protection in South Asia. Securing patent rights early helps businesses prevent unauthorized use and strengthen their market position. Veralex ensures seamless patent filing and prosecution in Bangladesh through experienced local associates and a globally aligned IP strategy. Patents and Designs Act, 1911 (as still applicable), administered by the Department of Patents, Designs and Trade Marks (DPDT) under the Ministry of Industries
• India and Bangladesh are both Paris Convention members — convention priority can be claimed within 12 months of Indian filing
• PCT applications can also be entered into the national phase in Bangladesh
• Patent term: 16 years from the date of filing
• Working requirement: Patents must be worked in Bangladesh within 3 years of grant
• Veralex has established correspondent relationships in Dhaka for efficient local prosecution


Nepal's patent system is governed by the Patent, Design and Trade Mark Act, 2022 (2065 BS). Patent applications are filed with the Department of Industry (DOI) in Kathmandu.
• Nepal is a member of the World Intellectual Property Organization (WIPO) and the Paris Convention
• Patent term: 7 years from the date of registration, renewable twice (maximum 21 years total)
• Applications must be filed in the Nepali language
• Veralex coordinates with experienced local Nepali patent agents for efficient prosecution
Sri Lanka has a modern intellectual property framework governed by the Intellectual Property Act, No. 36 of 2003. Patent applications are filed with the National Intellectual Property Office of Sri Lanka (NIPO) in Colombo.

Sri Lanka is a member of WIPO and the Paris Convention, allowing priority-based filings and international patent protection.

PCT national phase entry is available, with patents valid for 20 years and subject to working requirements.

Sri Lanka’s evolving IP system makes it an important market for pharma, technology, and FMCG patent protection.

In addition to the PCT, patents can also be filed directly in individual countries through the Paris Convention priority route. Under the Paris Convention, if you have filed a patent application in one member country (e.g., India), you can file in any other member country within 12 months while claiming the Indian priority date. This route is particularly efficient when you need patent protection in a limited number of specific countries without the overhead of a full PCT filing.
• Strategic country selection based on your commercial roadmap
• PCT application drafting and filing through Indian Patent Office or WIPO
•Management of national phase deadlines in all designated countries
• Coordination with our global network of associate attorneys
• Translation support for non-English language filings
• Monitoring and renewal of international patents
• Patent portfolio strategy for maximum global protection
A PCT application gives you up to 30 months (31 months for some countries) from the earliest priority date to enter the national phase. This extended timeline allows you to evaluate the commercial potential of your invention in different markets before committing to national filing fees.
Yes. If you are an Indian national or resident, you can file a PCT application with the Indian Patent Office as the Receiving Office, or directly with WIPO's international bureau in Geneva. Note that for inventions made in India, a Foreign Filing License (FFL) must be obtained before filing abroad.
PCT filing costs include WIPO international fees (approx. USD 1,400 for a 30-page application), the transmittal fee to the Indian Patent Office, and the search fee to the ISA. National phase costs vary significantly by country — from a few hundred USD (in some developing nations) to several thousand USD (in the USA, Europe, Japan). Veralex provides comprehensive cost projections to help you plan your international IP budget.
No. An Indian patent provides protection only within India. To protect your invention internationally, you must file separately in each country — either through the PCT or through direct national filings.
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