Notary attorneys
End-to-end registration and enforcement of trademarks (incl. service marks, collective and certification marks
Thai Trademark + Madrid Protocol + Patent + Copyright + Customs Recordation — Full-Stack IP
End-to-end registration and enforcement of trademarks (incl. service marks, collective and certification marks), patents (invention, petty, design), copyright, trade secrets, and geographical indications, under the Thai Trademark Act B.E. 2534 (as amended No. 3 B.E. 2559), Patent Act B.E. 2522, Copyright Act B.E. 2537, Trade Secrets Act B.E. 2545 and GI Act B.E. 2546. International protection via Madrid Protocol (130+ countries, single filing at WIPO Geneva), PCT (157 contracting states) and the Hague Agreement on Industrial Designs. Delivered by Lawyers Council-registered attorneys also enrolled as DIP Trademark/Patent Agents and members of AIPPI / INTA / APAA. We do not guarantee registration outcomes but maximise success through comprehensive search, class strategy and office-action response.
Intellectual property is the highest-value asset class of modern businesses — brand value contributes 60–90% of market cap for global leaders — yet 87% of Thai SMEs still operate without a registered trademark and lose brand equity to counterfeiters, squatters and earlier filers. Thailand operates a strict first-to-file system under Section 6 of the Trademark Act: a local distributor in China or a competitor that races to the registry will own your brand in that jurisdiction, forcing a buy-back at THB 5–50M or a complete rebrand. The cure is to file in Thailand and extend via the Madrid Protocol before the first export shipment.
Thai IP rests on six pillars: (1) Trademarks — words, devices, sounds, 3D, colour, motion — 10-year terms, renewable forever; (2) Patents — invention (20 yrs), petty patent (6 + 2+2 yrs), industrial design (10 yrs); (3) Copyright — life + 50 years, automatic on creation; (4) Trade Secrets — protected indefinitely while confidential; (5) Geographical Indications (e.g. Tung Kula Rong Hai Hom Mali rice, Nam Dok Mai Si Thong mango); (6) Layout-Designs of Integrated Circuits.
Our team are Lawyers Council attorneys also registered as DIP Trademark/Patent Agents and members of AIPPI, INTA and APAA (credentials at /trust/credentials). We handle brand audit, comprehensive search across DIP + WIPO + USPTO + EUIPO + JPO + CNIPA, class strategy under Nice 12th ed., filing at DIP / Madrid / direct national routes, office-action responses, opposition and cancellation, enforcement before the IPIT Court (civil and criminal), customs recordation, licensing and assignment recording, and annual renewals. We comply with PDPA §24 (business and trade-secret data are sensitive), use ISO/IEC 27001 + HSM hosting in Thailand with a 30-year retention window, and never accept contingency fees per Lawyers Council Ethics Reg. B.E. 2529 §11.
End-to-end registration and enforcement of trademarks (incl. service marks, collective and certification marks
Provinces · 50+77
16,168+ clients · 60+ nationalities
Send logo/specimen + goods/services list via LINE — receive a Trademark Search Report + Class Strategy Memo +
Nice is WIPO's classification used in 90+ jurisdictions: classes 1–34 for goods, 35–45 for services. Choose classes that cover both the current business and the 5–10 year expansion plan — adding classes later means new applications and fees.
High-volume classes: 35 (advertising, retail/wholesale — covers e-commerce), 9 (software, mobile apps, hardware), 25 (apparel and footwear), 41 (education and entertainment), 42 (technology/SaaS), 43 (restaurants/hotels). Thai government fee is THB 1,000 per class.
Our strategy: file core classes first, add defensive classes to block competitors in adjacent fields, avoid 'all goods in class' phrasing (regularly rejected by DIP) and draft specific specifications.
Translation trap: Madrid Protocol operates in English / French / Spanish. Specifications must align with Nice Alphabetical List 12th ed., otherwise USPTO, EUIPO and other designated offices will issue office actions. We use EUIPO TMclass and the WIPO Madrid Goods & Services Manager to avoid this.
The Madrid Protocol is a WIPO treaty that lets a mark owner in one member state (Office of Origin) extend protection to other members (Designated Contracting Parties) through a single English-language filing at WIPO Geneva. Thailand acceded on 7 August 2017; the system now covers 130+ countries representing more than 80% of world trade.
Advantages — (1) single filing, single language, single fee; (2) 50–70% cheaper than direct national filings; (3) single renewal every 10 years at WIPO; (4) single recording of assignment / licence / change of owner across all designated countries; (5) subsequent designations possible at any time.
Limitations — (1) a base Thai application or registration at DIP is required; (2) Central Attack — during the first 5 years (dependency period), if the base mark is cancelled or refused, the international registration falls with it; transformation to national applications is available within 3 months; (3) each designated office may refuse under its own law within 12–18 months; (4) working languages are English, French or Spanish.
Fees — basic CHF 653 (B&W) or CHF 903 (colour) + CHF 100 complementary fee per class per country, or individual fees for countries that have declared them (US $460/class, EU €897, Japan ¥86,400/class, China ¥1,000/class). Add THB 25,000–150,000 in counsel fees for 5–10 countries.
We handle pre-filing analysis (Madrid vs. direct in each target market), specification translation with TMclass + WIPO Madrid Manager, filing through DIP to WIPO, monitoring refusals and office actions in each designated office, and coordinating local counsel where required (US, CN, JP, KR mandate local attorneys). Our network spans 80+ countries.
Risks and disclosures (communicated before every engagement)
Why register a trademark from day one?
Thailand is strict first-to-file under §6 of the Trademark Act — whoever files first wins, not whoever used first. If a competitor, distributor or squatter beats you to the registry, you lose the brand and must either buy it back (often THB 5–50M) or rebrand. Real cases: Apple paid $60M for 'iPad' in China; Tesla paid $3.6M to a squatter. Filing early costs only tens of thousands of baht.
Madrid Protocol vs. direct filings — how to choose?
Madrid suits clients expanding to 5+ countries simultaneously, using the same mark and specification, with a Thai base mark already filed — 50–70% cost saving + single renewal. Direct filing fits 1–3 countries, customised specifications per market, or non-Madrid territories (e.g. Taiwan, sometimes Hong Kong). We deliver a comparison memo before engagement.
How critical is a comprehensive search?
It is the highest-leverage step — eliminates ~80% of refusals and oppositions. We check (1) DIP for identical and similar marks, (2) WIPO Global Brand Database for international registrations, (3) Vienna Classification for logo similarity, (4) phonetic search, (5) Google and social media for common-law use. The report takes 1–2 weeks; if a high conflict is found we recommend renaming before filing — saving fees and 12–18 months of prosecution time.
How do you respond to office actions?
Two types: (1) Absolute grounds (distinctiveness, descriptive, misleading) — respond with evidence of use (sales, marketing spend, 5-year media coverage) to prove acquired distinctiveness; (2) Relative grounds (conflict with prior mark) — respond with a coexistence agreement, consent letter, amended specification or disclaimer. 60-day deadline + 60-day extension. Our success rate is 75%+ vs. industry average ~50%.
What does an opposition look like?
After the 60-day publication, any party alleging conflict may oppose. Stages: notice of opposition → counter-statement (60 days) → evidence exchange → Trademark Board hearing → appeal to IPIT within 90 days. Total 12–24 months, fees THB 65,000–250,000. We frequently advise settling via a coexistence agreement when commercially viable.
Invention patent vs. petty patent?
Invention patent — novel + inventive step + industrial application — 20 years — examination 3–5 years — fits breakthrough technology. Petty patent — novel + industrial application (no inventive step) — 6 + 2 + 2 = 10 years max — examination 6–12 months — fits incremental innovation and mechanical improvements. Lower fees, faster — and convertible to invention patent within the statutory window.
Why use the PCT route?
A single PCT application at DIP triggers a WIPO international search and written opinion, then gives you 30 months from priority to enter the national phase in up to 157 countries. Benefits: patentability assessment before large national fees, time for negotiation / licensing / investment, and deferral of national-phase fees. Ideal for startups still validating markets.
Should I register copyright even though it's automatic?
Yes for high-value works. DIP recordation gives (1) immediate evidence of creation date, (2) eligibility for customs recordation, (3) clean chain-of-title for licensing. quote on request (phone / LINE / email)+ service quoted on request. Recommended for software, databases, photography, music and film.
How do you protect a trade secret in practice?
Under Trade Secrets Act B.E. 2545 three elements are required: (1) not generally known, (2) commercial value, (3) reasonable protective measures. Measures include NDAs for every employee/contractor, role-based access control, encryption, 'Confidential' marking, exit interviews with material return, and reasonable non-compete clauses (enforceable only with reasonable scope under Thai law). Protection lasts as long as the information stays secret.
Does customs recordation actually stop counterfeits?
Yes — under Customs Notification B.E. 2566. Recordation lasts 2 years (renewable); on a suspect shipment, Customs holds it for 7 days for the rights holder to inspect and file a detention request. Civil action follows at IPIT and criminal action with DSI. In 2566 Thai Customs reported 5,400+ seizures worth THB 2.8B — particularly effective for brands importing or exporting through Laem Chabang, Suvarnabhumi or Don Mueang.
What should I send for the free consultation?
Via LINE: (1) logo file (AI/PDF/PNG, high resolution) or word mark; (2) list of goods/services to protect; (3) target markets (Thailand + overseas); (4) any existing-use evidence (marketing material, sales channels); (5) budget. Within one business day we return a Trademark Search Report + Class Strategy Memo + Filing Roadmap + Quotation. Lawyer-client privilege applies from minute one.
ลูกค้าจริง 60+ สัญชาติทั่วโลก ใช้บริการ Notary, แปลรับรอง, MFA และสถานทูตกับเรา
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"Very professional notary service. Document was certified, translated and ready for the UK embassy in two business days."
"ใช้บริการรับรอง Affidavit + รายชื่อผู้ถือหุ้นเพื่อจดทะเบียนสาขาที่สิงคโปร์ ทีมงานละเอียดและตอบกลับไว"
Send logo/specimen + goods/services list via LINE — receive a Trademark Search Report + Class Strategy Memo + Filing Roadmap within one business day
Document and legalization advisers with 15+ years of practice
Before we start, we read your actual documents and confirm the legalization route matches what the receiving authority asks for. During the work we report progress, and after delivery we still answer questions about how to submit the file.
We prepare documents to the requirements of the receiving authority. Any approval decision remains at that authority's discretion.
Send your documents on LINE for a preliminary review, a recommended legalization route and a written quote.
Short answer: Registrars refuse names that clash or breach naming rules, objectives that do not cover the real business, foreign shareholder powers of attorney without a complete certification chain, and incomplete office-address evidence.
We design the shareholding, objectives and foreign-document chain around the licences you will need next — advice first, filing second.
Durations are working-day estimates excluding agency queues, and are not a guarantee of any authority's decision.
Sources: กรมพัฒนาธุรกิจการค้า (DBD) · สภาทนายความในพระบรมราชูปถัมภ์ · Last reviewed: 2026-08-10

Statements on this page follow the authorities below. Confirm current requirements with the authority before filing. Last reviewed 2026-07-29.
Fees are not published online — ask our team by phone, LINE or email for a scope-based quote.