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Protecting intellectual property in Thailand

The most common intellectual property loss in Thailand is not counterfeiting. It is arriving to find your own brand already registered by someone else, lawfully, under a first-to-file system that owes you nothing for having used the name elsewhere for twenty years. Almost every serious IP problem foreigners encounter here is cheaper to prevent than to litigate, and the prevention is mostly filing early.

Tim Connor · Last updated: 14 August 2026 · General information, not legal advice

First to file: the rule that changes your timetable

Thailand grants trademark rights to the first filer, not the first user. Use and reputation abroad carry limited weight unless a mark is genuinely well known, a high bar reserved for global household names. The practical consequence is a familiar pattern: a foreign business tests the Thai market through a distributor, gains traction, and then discovers the distributor, a former employee, or a professional squatter has registered its mark. The registrant can then block the brand owner's own imports, demand payment for the mark, or simply trade on it. Cancellation actions on bad-faith grounds exist and sometimes succeed, but they take years and their outcome is uncertain. The planning rule is short: file in Thailand before you enter, before you appoint a distributor, and before any public launch. Filing costs are modest against any of those outcomes.

Registration paths and realistic timelines

Trademarks are registered with the Department of Intellectual Property, either by direct national filing or through the Madrid Protocol designating Thailand. Direct filing with local counsel gives better control over the Thai-language specification and smoother handling of office actions; Madrid suits businesses filing across many countries at once. Either way, expect the process to run roughly 12 to 18 months when unopposed, and file in every class you genuinely trade in, including the classes a squatter would find useful. Patents follow the national route or PCT national phase; invention patents are slow, often five years or more to grant, while petty patents and design patents grant faster and are underused by foreign SMEs. Copyright arises without registration, though the DIP offers a recordation that helps evidentially. Trade secrets are protected by statute, but the protection is only as good as your contracts and access discipline, which is a drafting task, not a filing.

RightPathTypical timelinePractical note
TrademarkDIP national filing or Madrid ProtocolRoughly 12 to 18 monthsFile before market entry; cover the classes squatters would want
Invention patentNational or PCT national phaseOften 5 years or moreBudget for the long haul; consider petty patent in parallel
Petty patent and designDIP national filingRoughly 1 to 3 yearsFaster, cheaper, useful for product businesses
CopyrightAutomatic; optional DIP recordationImmediateRecordation strengthens evidence in disputes
Trade secretsContractual and operationalContinuousNDAs, access controls, and exit procedures do the real work

Enforcement: the honest menu

Thailand's enforcement machinery is more capable than its street markets suggest, and it runs through the Central Intellectual Property and International Trade Court, a specialised court with experienced judges. The menu, in ascending order of commitment: warning letters through counsel, which resolve a surprising share of domestic infringement; criminal raids for trademark counterfeiting and copyright piracy, conducted with the Economic Crime police and effective for physical goods; customs recordation, which lets officers intercept infringing imports and exports; civil actions for damages and injunctions, which work but inherit the pace and cost realities described in our separate briefing on Thai litigation; and platform takedowns for online infringement, which have become steadily more responsive. Damages awards are modest by Western standards, so enforcement strategy here is about stopping the bleeding and raising the infringer's costs, not about windfalls. Registered rights are the ticket to all of it; enforcing unregistered positions ranges from difficult to hopeless.

Licensing and partners: where owners give it away

A large fraction of Thai IP disputes trace back to a relationship the owner chose: the distributor, franchisee, licensee or manufacturer. The recurring drafting failures are known and avoidable.

Employment contracts deserve the same attention: Thai law's default rules on employee inventions and works are not always what a foreign employer assumes, and a clause written in advance costs nothing.

Sequencing it sensibly

For most businesses entering Thailand the order is: file trademarks in the right classes before any public step, tidy the contracts that touch your IP, record with customs once goods are moving, and enforce early and proportionately when infringement appears, because tolerated infringement metastasises. None of this is exotic; it is administration done in the correct order. Asia Global Partners coordinates that administration for clients through IP counsel whose work we have seen tested in the CIPIT Court, and where a brand matters to a principal's wider affairs we simply make sure the filings exist before anyone in Thailand has heard the name.

This briefing is general information, not legal, tax or investment advice. Thai rules change frequently and individual cases differ. Verify current requirements with the relevant authorities, including the Immigration Bureau, the Board of Investment, the Land Department, the Department of Business Development and the Revenue Department, and take advice on your own facts before acting.

Where a conversation helps.

Briefings generalise; your situation will not. We work with a limited number of private partners, and if any of the above touches a decision you are actually making, we would be glad to consider it with you, privately and without obligation.

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