If you’re planning to expand your business into Southeast Asia, Thailand is probably right near the top of your list. And for good reason. The market is huge, the economy is resilient, and local consumer demand for foreign brands keeps climbing year after year.
But there’s a massive trap that catches international founders off guard all the time. You can spend hundreds of thousands of dollars building a brand back home, launch a sleek site in Bangkok, ship inventory to local distributors, and then, bam! You get hit with a cease-and-desist letter.
Why? Because someone else registered your exact brand name in Thailand six months before you even bought your flight ticket. It happens way more often than you think.
Thailand is a strict first-to-file country. It doesn’t matter if you’ve used your name in the US or Europe for ten years. If you haven’t secured your trademark with the Thai Department of Intellectual Property (DIP), you simply don’t own it here.
That’s why partnering with a seasoned trademark law firm Thailand founders trust isn’t just a legal check-the-box item, it’s smart asset protection.
Let’s walk through how trademark law in Thailand actually works, step by step, so you can lock down your brand rights before someone else snaps them up.
Step One: The Trademark Search (Do NOT Skip This)
At Herrera & Partners (H&P), we see companies make this mistake constantly. They fill out their trademark application, pay the government filing fees, and submit everything directly to the DIP. Then they sit back and wait.
Ten months later, they get a rejection letter. Why? Because a local company registered a mark three years ago that sounds almost identical when spoken out loud in Thai.
Money down the drain. Months lost.
Before you file a single form, you need to run a deep trademark search. But here’s the thing: searching in Thailand is trickier than searching in Western markets.
Database Checks vs. Phonetic Nuances
Sure, you need to search the official DIP database across your relevant Nice Classification classes. But a basic exact-match query isn’t enough.
In Thailand, examiners zero in on two big factors:
- Visual similarity: Does your logo or mark look like an existing one?
- Phonetic similarity: How does your brand sound when pronounced by a native Thai speaker?
A brand name spelled completely differently in English might be transliterated into Thai script using characters that sound identical to an existing local trademark. If that phonetic profile overlaps in the same business class, the DIP will throw out your application to avoid consumer confusion.
A specialized trademark law firm Thailand team won’t just hit “search” on an automated database. They will analyze phonetic translations, visual elements, and cross-class risks to give you a real risk assessment before you spend a single dollar on government fees.
What Can (and Can’t) Be Registered Under Thai Law
Under the Thai Trademark Act, a mark has to hit specific legal criteria to get approved. If your mark misses the mark, the DIP examiner will issue a quick refusal.
Here is the breakdown of what works and what doesn’t.
What CAN Be Registered
Thailand recognizes a broad range of brand identifiers, including:
- Plain words, names, and letter combinations
- Catchy slogans and distinctive phrases
- Logos, devices, and stylized graphics
- Unique product packaging and 3D shapes
- Sound marks and specific color combinations
- Collective and certification marks
What CANNOT Be Registered (Absolute Grounds for Refusal)
Your application will be rejected on arrival if it fits into any of these buckets:
- Lack of Distinctiveness: You can’t trademark terms that are purely descriptive. If you sell organic green tea, you can’t register the words “Organic Green Tea.” The mark needs to be coined, arbitrary, or distinctive enough to stand out from competitors.
- Prohibited Symbols: National flags, royal emblems, official crests, state seals, or anything that clashes with public order or public morality are completely off-limits.
- Deceptive Marks: Anything that misleads consumers about the nature, origin, or quality of your goods or services will be rejected.
- Identical or Confusingly Similar Marks: Anything that conflicts with an already registered trademark or a well-known international mark.
How the DIP Filing Process Actually Works
Once your preliminary search is clean and you know your mark is distinctive, it’s time to file with the Department of Intellectual Property.
You have two main ways to handle this.
Option A: Direct National Filing in Thailand
If you’re setting up a local Thai business, or if Thailand is a major target market for you, direct filing is usually the cleanest and fastest route.
Here’s the rule to remember: if you’re a foreign business without a physical office or residence in Thailand, Thai law requires you to hire a local representative or attorney. You can’t file on your own from abroad.
To do this, you’ll sign a formal Power of Attorney (POA) authorizing your local attorney to represent you before the DIP. This document usually needs to be notarized in your home country before you send it over.
Option B: The Madrid System Route
Thailand is part of the Madrid Protocol. If your home country is also a member, you can extend your trademark to Thailand through an international application via WIPO (World Intellectual Property Organization).
While Madrid applications sound easier, keep this in mind: DIP examiners in Thailand evaluate Madrid applications under strict local rules. If the DIP issues an office action, like asking you to narrow down your description of goods, you will still need to hire a local legal team in Bangkok to respond directly within strict time limits.
Examination, Publication, and the 60-Day Opposition Window
Filing the paperwork is step one. After that, your application moves through three distinct stages.
Phase 1: Substantive Examination (9 to 12 Months)
A DIP examiner goes through your application line by line. They verify that your mark is distinctive, ensure your goods and services match Thailand’s exact classification guidelines, and check for conflicts against existing trademarks.
If the examiner finds an issue, they’ll issue an office action. You usually get 60 days to respond, adjust your application, or submit legal arguments defending why your mark should be registered.
Phase 2: Official Publication
Pass the examination phase? Great. The DIP publishes your mark in the official Trademark Journal.
Phase 3: The 60-Day Opposition Window
Once published, the clock starts ticking. For 60 days, any third party who feels your mark infringes on their existing rights, lacks distinctiveness, or was filed in bad faith can file a formal notice of opposition.
If someone opposes your mark, don’t panic. You will be served notice and given time to submit a formal counter-statement. This is where having a sharp legal team matters, presenting proof of prior use and strong legal arguments is how you win oppositions.
If no one objects during those 60 days, your trademark moves to the final approval stage.
Realistic Timelines, Fees, and What to Expect
Let’s talk real numbers so you know what you’re getting into.
How Long Does It Take?
Assuming everything goes smoothly with zero office actions or third-party oppositions, expect the process to take roughly 12 to 18 months from filing date to holding your physical registration certificate.
Here’s the typical timeline:
- Search & Prep: 1 to 2 weeks
- DIP Examination: 8 to 12 months
- Publication & Opposition Period: 60 days (fixed by law)
- Certificate Issuance: 2 to 3 months
If you hit an office action or an opposition, tack on another 6 to 12 months.
Understanding the Fee Breakdown
Your costs break down into two areas:
- Official DIP Fees: Government fees are charged per item of goods or services listed. For example, listing 1 to 5 items under a single class costs a set rate per item, while listing more than 5 items switches to a flat rate for that class.
- Legal Fees: This covers your preliminary search, document preparation, POA handling, filing management, and ongoing tracking.
Spending a little extra up front for proper legal guidance is way cheaper than appealing a rejection or rebranding your business two years down the road.
Keeping Your Trademark Active and Safe
Getting that registration certificate in your hands feels like a win. But legally, your work isn’t done.
The 10-Year Protection Clock
A registered trademark in Thailand is protected for 10 years. But here’s the detail people miss: that 10-year term starts from your original filing date, not the date your certificate was issued.
So if your application took 18 months to go through, you’ll have about 8.5 years of active protection remaining on your first term once the certificate arrives.
How Renewals Work
You can renew your trademark every 10 years indefinitely.
- The Renewal Window: You can file for renewal within 90 days before the expiration date.
- Grace Period: There is a 6-month grace period after the expiration date, but filing late incurs a mandatory government surcharge. Miss that 6-month grace period completely, your trademark rights expire, and your brand name becomes fair game for anyone else to claim.
Active Enforcement: Protecting Your Brand in the Real World
Holding a registration certificate gives you exclusive legal rights to use your mark on your specified goods and services across Thailand. But here’s the reality: the Department of Intellectual Property does not police the market for you. Brand protection is up to you.
If you spot unauthorized knockoffs or counterfeiters using your name:
- Customs Recordation: You can register your trademark with Thai Customs to help intercept and seize counterfeit goods at ports and border entry points.
- Cease-and-Desist Notices: A legal letter sent by an established local law firm resolves the vast majority of local infringement issues without needing a full-blown court battle.
- Civil and Criminal Action: Thai law provides both civil remedies (such as financial damages and court injunctions) and criminal penalties against counterfeiters.
Final Thoughts: Protect Your Assets Before You Launch
Building a recognizable brand takes years of relentless effort, strategy, and investment. Losing control of your brand in a key Southeast Asian market because of an administrative oversight or a missed filing deadline is a completely avoidable risk.
Search thoroughly before launch. Make sure your mark checks every distinctiveness box. Get your local Power of Attorney paperwork lined up properly. And partner with local experts who know how DIP examiners think.
If you are expanding into Southeast Asia or need to audit your brand protection strategy, get in touch with our team at Herrera & Partners. As a trusted trademark law firm Thailand entrepreneurs and international brands count on, we will help you navigate every stage of the filing process and ensure your intellectual property remains 100% secure.
