Filing a trademark application in Vietnam without a clearance search is like signing a contract without reading the terms: the risk of refusal after months of waiting is very real. Under the rules in force as of October 2026, Vietnam applies a first-to-file principle — if your mark is identical or confusingly similar to a mark someone else filed earlier, your application will be refused. This guide walks through trademark clearance search before filing in Vietnam: where to search, how to do it, how to read the results, and the common pitfalls.
Why a clearance search is critical (even though it is not mandatory)
Vietnamese IP law does not require applicants to search before filing. In practice, however, this step determines whether your investment pays off:
- Fees are non-refundable if the application is refused after substantive examination.
- Time lost: since 1 April 2026, substantive examination of a trademark application takes 5 months from publication (Article 119 of the IP Law, as amended by Law 131/2025/QH15) — roughly 8–9 months in total before you learn the outcome. Filing a high-risk application without searching means gambling nearly a year.
- Brand launch derailed: product launches, packaging print runs and advertising campaigns built on a mark that ultimately cannot be protected.
The examining authority applies Article 74 of the IP Law: a mark is deemed to lack distinctiveness if it is identical or confusingly similar to another person’s mark for which an application was filed earlier. A clearance search is how you test your mark against this standard in advance.
Two levels of search: preliminary and in-depth
1. Preliminary search — do it yourself, free of charge
- WIPO Publish of the Intellectual Property Office of Vietnam (IP Viet Nam): at wipopublish.ipvietnam.gov.vn, select “Trademarks” and search by mark name, Nice class, or applicant. Word, figurative (Vienna classification) and combined searches are available.
- ASEAN IP Register: trademark data across ASEAN member states.
- WIPO Global Brand Database (branddb.wipo.int): for businesses planning to export or expand abroad.
- Supplementary image searches for logo/figurative elements.
Key limitation: public databases lag behind reality — recently filed applications may not yet appear. Preliminary results are for reference only; the final conclusion rests with IP Viet Nam’s examiners.
2. In-depth search — through an industrial property representative
A lawyer or licensed IP agent searches using professional databases and examination experience, assessing similarity in structure, pronunciation and meaning — factors that mechanical searches often miss. The deliverable typically includes a success-rate assessment and recommendations (adjust the name, add distinctive elements, split Nice classes).
How to read search results
| Result | Meaning | Action |
|---|---|---|
| Identical (name + product class) | Very high refusal risk | Change the mark or the class of goods/services |
| Confusingly similar (pronunciation, meaning, appearance) | Medium–high risk | Redesign, add distinctive elements; consider an in-depth search |
| Same name, unrelated class | May be registrable | File in the correct class; note well-known marks enjoy cross-class protection |
| No similar results | Positive signal | Proceed to file; monitor for oppositions |
New timelines from 1 April 2026 and filing strategy
The 2025 amended IP Law (Law 131/2025/QH15, effective 1 April 2026) significantly shortened processing times:
- Formality examination: about 1 month.
- Publication: 1 month from acceptance of a valid application (down from 2).
- Substantive examination: 5 months from publication (down from 9).
- Fast-track examination: 3 months where Government-prescribed conditions are met.
Filing procedures follow Circular 10/2026/TT-BKHCN (effective 1 April 2026). The smart strategy: search thoroughly, file early (first-to-file), and consider fast-track examination where urgent protection is needed.
Frequently asked questions
1. What is the most authoritative place to search?
IP Viet Nam’s WIPO Publish digital library (wipopublish.ipvietnam.gov.vn) — the most complete database of applications filed and marks protected in Vietnam.
2. Does a “clean” preliminary search guarantee registration?
No. Public data lags and cannot fully capture phonetic or semantic similarity. An in-depth search gives greater confidence.
3. Are filing fees refunded if the application is refused?
No — which is exactly why you should search first.
Legal sources
- Law on Intellectual Property — Consolidated Document 67/VBHN-VPQH 2026 (consolidating Law 131/2025/QH15, effective 1 April 2026): Article 74 (distinctiveness), Article 119 (examination time limits — amended by Clause 44, Article 1 of Law 131/2025).
- Circular 10/2026/TT-BKHCN (effective 1 April 2026) — IP registration procedures; Circular 20/2026/TT-BKHCN (1 July 2026) — amended forms.
- Decrees 100/2026/ND-CP, 15/2026/ND-CP, 33/2026/ND-CP (1 April 2026) — guiding the IP Law (replacing Decree 65/2023/ND-CP).
Transparency: This article was prepared by AI within the FLAW AI Legal Council workflow; it is not advice from a human lawyer and does not replace legal advice for your specific case.
FLAT Law Firm assists businesses with trademark clearance searches, registrability assessments and filing in Vietnam — from preliminary searches to dossier preparation and examination follow-up. Contact us for advice on your specific case.
This article is pending review by the QA Council.