IP & Trademark

The Patent Act B.E. 2522 (1979) as amended through B.E. 2542 (1999) is the Thai patent substrate. Three patent categories: invention patents (20-year term from filing) require novelty (§ 5), inventive step (§ 6), and industrial applicability (§ 7); design patents (10-year term, non-extendable) require novelty and industrial applicability of the visual design; petty patents (6 years + 5-year extension) apply lower inventive-step threshold for incremental innovations. Claim drafting is governed by § 17 (clarity and support in specification); amendments under § 20 may not exceed original disclosure.

For PCT national phase routing, Thailand has been a PCT contracting state since 2009, with national-phase entry deadline at 30 months from priority (extendable to 31 months on request). The international application must be translated into Thai by national-phase entry; voluntary and demand-track amendments may be filed. The substantive examination then proceeds under the Patent Act — the international application substance is preserved, but Thai claim-drafting conventions and examination practice govern outcomes. The bench coordinates international-phase claim language with Thai-phase prosecution discipline. Paris Convention priority since 1929 provides an alternative 12-month direct-filing route for invention/petty patents (6 months for designs).

The Trademark Act B.E. 2534 (1991) as amended through B.E. 2559 (2016) governs Thai trademark protection. The 2016 amendment was the key Madrid Protocol implementation legislation; Madrid Protocol took effect for Thailand on 7 November 2017. The framework operates bidirectionally: Thailand as designated office for inbound international registrations from foreign applicants (the WIPO-routed international application designates Thailand and the DIP conducts national-phase examination); Thailand as office of origin for Thai-applicant outbound international applications (a Thai trademark holder files internationally through the DIP via WIPO, designating other Madrid Protocol member states).

For Thai brand portfolios with multi-jurisdiction strategy, Madrid Protocol routing offers cost and procedural efficiency over multiple direct national filings. Key constraints: the international registration depends on the basic Thai mark for the first 5 years (central attack risk); each designated office conducts independent examination under its own law; goods/services specifications must align with the basic Thai application. The bench coordinates the Thai-side trademark file with the international registration record, preserving specification consistency across both. Examination at the DIP applies § 7 distinctiveness and § 8 prohibition grounds; 90-day post-publication opposition window applies; total domestic registration cycle typically 12–18 months uncontested.

The Trade Secrets Act B.E. 2545 (2002) requires three concurrent elements under § 3 for protection: (i) the information must be not generally known or readily accessible to persons normally dealing with that type of information; (ii) it must have commercial value precisely because of its secrecy; (iii) the holder must have taken reasonable measures to maintain secrecy under the circumstances. Each element is independently necessary; documentation must address each.

Framework documentation that establishes protection: for element (i), descriptions defining the information’s scope with specificity, plus evidence of the basis for not-generally-known status (limited disclosure, R&D origin, lack of public publication); for element (ii), commercial-value evidence (R&D investment, market advantage from secrecy, valuation context, licensing benchmarks for analogous information); for element (iii), the specific reasonable measures — access-control protocols, confidentiality designations on documents, NDAs with employees and counterparties, training on confidentiality obligations, exit-interview procedures, IT security architecture, physical-access controls, and technology transfer agreement carve-outs. Reasonable measures must be calibrated to the value at stake; nominal measures fail. § 6 civil remedies include injunction, damages, and account of profits; § 33 criminal sanctions apply for aggravated breaches up to 10 years imprisonment. The bilingual desk preserves the three-element framework precision across both languages.

Patent claim language defines the scope of the right. Claim-element drift between Thai and English may shift scope — expanding scope risks invalidation on prior art that was within an unintended scope expansion; narrowing scope shrinks enforcement reach against infringers operating just outside the narrowed claim. Bilingual translation preserves every claim element (numerical ranges, structural features, functional limitations, material specifications), every transitional phrase (comprising / consisting of / consisting essentially of carry distinct doctrinal weight), every defined-term reference, and every claim-dependency hierarchy across independent and dependent claims.

Beyond filing, prosecution history — the record of office-action responses, arguments, and amendments — may be invoked at later enforcement to construe claim scope or to estop later claim positions. If during prosecution the applicant argued that the invention distinguishes prior art by feature X, opposing counsel may later use that argument to limit claim scope at infringement. The bilingual desk operates with prosecution-history awareness throughout the multi-year examination cycle, preserving response-statement precision on both languages. Where amendments are made under § 20 (amendments may not exceed original disclosure), the bench verifies disclosure-scope preservation. The case-glossary holds claim terms, specification terms, and prosecution statements across the prosecution lifecycle.

Once a trademark application passes DIP examination, it is published in the Trademark Gazette and opens a 90-day opposition window during which any party with grounds may file opposition. Common grounds: prior rights (earlier registration or use of similar mark for related goods/services); § 7 non-distinctiveness (the mark lacks distinctive character); § 8 prohibitions (deceptive, descriptive, contrary to public order, royal insignia conflicts, geographical-indication conflicts); bad-faith filing (filed without bona fide intent to use, or in awareness of another’s prior rights); well-known mark conflicts under Article 6bis of the Paris Convention.

Opposition discipline requires structured evidence on both languages — declarations from rights-holders and witnesses, market-recognition surveys, sales and marketing-spend data, prior-use evidence, comparative-mark analysis, consumer-confusion likelihood analysis. For Madrid Protocol designations the same opposition framework applies to the Thai-side examination. Cross-border evidence (registrations and use in other jurisdictions) may strengthen well-known-mark claims under Article 6bis. The opposition cycle typically runs 6–12 months at DIP level, with appeals to the Trademark Board and onward to the IP&IT Court for judicial review. The bilingual desk operates the opposition record with case-specific terminology custodianship throughout.

Thailand has been a PCT contracting state since 2009. National-phase entry from a PCT international application requires filing at the DIP within 30 months from the earliest priority date, extendable to 31 months on request and fee payment. The deadline is hard; failure to enter national phase by 30/31 months irretrievably loses Thai patent rights.

National-phase requirements: full Thai translation of the international application (specification, claims, drawings text, abstract); national-phase entry request with prescribed fee payment; designation confirmation; any voluntary amendments to the claims or specification within the permitted scope of original disclosure under § 20. The bench operates with deadline discipline — the translation must complete with margin before 30/31 months. For complex technical applications (biotech, pharmaceutical, semiconductor, ICT) the translation requires subject-matter terminology research and verification; lead-time planning of 6–8 weeks before the deadline is the procurement-prudent approach. The bench preserves international-phase claim language while accommodating Thai claim-drafting conventions; substantive examination then proceeds over a 3–5 year cycle. Pairing PCT national-phase entry with Madrid Protocol trademark designations is common for multi-jurisdiction brand-and-technology portfolios.

Thai copyright protection arises automatically upon creation under the Copyright Act B.E. 2537 with no registration requirement. Voluntary registration with DIP provides evidentiary value at enforcement — the registration record evidences authorship and creation date, which can be material in infringement actions where evidentiary chain is contested. Registration is fast (typically 2–6 weeks) and modest in cost.

Bilingual registration materials preserve work-classification under § 6 — literary (including computer programs), musical, dramatic, artistic (paintings / sculpture / engraving / architectural / photography / drawings / illustrations / applied art), audiovisual, cinematographic, sound recordings, broadcasts. Classification matters because remedies and infringement standards apply differently across categories. Authorship attribution distinguishes natural persons, juristic persons, and works for hire (each with different term and rights-allocation rules). Chain-of-title preservation — through assignments and exclusive licences in writing under the Copyright Act — is the gateway to standing in enforcement actions; gaps in the chain may defeat infringement claims regardless of the merits. The bench treats chain-of-title preservation as procurement-critical for SET-listed issuers with copyright assets in their IP portfolio and for technology / media companies with large software copyright holdings.

The Central Intellectual Property and International Trade Court (IP&IT Court) is a specialised forum established under the Act for the Establishment of and Procedure for IP&IT Court B.E. 2539 (1996). Jurisdiction covers IP infringement (patent / trademark / copyright / trade secret / geographical indications), IP licensing disputes, parallel-import matters, and international trade disputes. Civil and criminal IP enforcement proceed in the same forum.

Distinctive procedural features: technical adviser system — court-appointed technical advisers pair specialised IP / technical expertise with the judicial panel for IP-substantive evidence interpretation. Expedited evidentiary protocols address IP-specific evidence (claim-construction analysis, prior-art examination, comparative-product testing, market-recognition surveys, damages quantification). Appellate route: appeal goes directly to the IP&IT Division of the Court of Appeal, then directly to the Supreme Court (Dika) — bypassing the intermediate Court of Appeal that handles general civil matters. This direct Dika route compresses appellate timing relative to general civil litigation.

Litigation translation operates with case-glossary continuity from prior prosecution, technical-adviser-system awareness (the bench preserves technical terminology with sufficient precision that court-appointed advisers can rely on the bilingual record), and direct Dika appellate route awareness in case strategy. Pairing with the Arbitration & Litigation contentious workstream provides the broader contentious-litigation framework.

IP prosecution differs fundamentally from transactional in one core respect: the prosecution record continues to grow across years — from filing through publication through substantive examination office actions through grant through portfolio maintenance through enforcement. Each new prosecution document builds on the claim terms, specification terms, defined terms, and prosecution statements established at filing.

The bilingual desk treats the case glossary as sustained custodianship across years. At filing, the bench builds the case-specific IP-terminology glossary covering technical terminology, defined terms in the specification, claim-element terminology, and party / entity / product references. The glossary locks for the prosecution lifecycle. Every subsequent translation in the cycle — office action responses, amendments, examiner-correspondence, voluntary submissions, opposition defences, and (where prosecution moves to enforcement) infringement complaints, expert reports, hearing transcripts, and IP&IT Court judgments — uses the locked glossary identically on both languages. Glossary expansion as new terms enter, but no drift on existing terms. The bench maintains the working glossary under ISO 27001 information security with version control across years. Glossary drift between Thai and English IP materials can be exploited by opposing counsel at opposition, invalidation, or infringement; portfolio-glossary custodianship is the discipline that prevents it. Annual portfolio panel placement supports this most efficiently.

Three verification routes operate in parallel. Route one — standards-body verification: ISO 17100 for translation service quality (translator + reviser + reviewer chain), ISO 27001 for information security (essential given competitor / co-pending matter sensitivity and trade-secret material the bench handles), and any specialist IP-translation accreditation. Route two — structured procurement reference disclosure under mutual NDA: reference disclosure scoped to procurement-relevant proof points — prior coverage across the seven IP document categories (patent applications, patent prosecution, trademark applications, trademark opposition, copyright registration, trade-secret framework, IP&IT Court litigation), PCT national-phase entry experience with on-deadline filings, Madrid Protocol designation handling experience (both inbound to Thailand and Thai-outbound), multi-year prosecution glossary custodianship track record, opposition / cancellation defence experience, IP&IT Court contentious-evidence translation experience, and competitor / co-pending matter information-barrier discipline.

Route three — pre-engagement scoping call: 30-minute call within 2 business days of mutual NDA execution, walking through the portfolio architecture, the technical subject-matter fields, the jurisdiction map including PCT and Madrid plans, the case-glossary baseline approach, the conflicts-check methodology against competitor / co-pending matters, and the prosecution / enforcement coordination if applicable. For annual IP portfolio panel placement covering multi-jurisdiction prosecution, a structured 10-component capability brief covers bench composition with technical-discipline pairing, prior coverage across IP categories and forums, PCT / Madrid Protocol experience, prosecution-history preservation methodology, opposition / cancellation defence capacity, IP&IT Court litigation experience including direct Dika appeals, technical-adviser-system awareness, information-barrier discipline, ISO 17100 and ISO 27001 alignment, conflicts check, framework rate card structure, and reporting / SLA approach. Engagement begins under mutual NDA.