{"id":4179,"date":"2026-09-07T15:22:12","date_gmt":"2026-09-07T06:22:12","guid":{"rendered":"https:\/\/sarangip.com\/en\/?p=4179"},"modified":"2026-09-07T15:36:19","modified_gmt":"2026-09-07T06:36:19","slug":"how-to-search-korean-trademarks-patents-kipris-guide","status":"publish","type":"post","link":"https:\/\/sarangip.com\/en\/how-to-search-korean-trademarks-patents-kipris-guide\/","title":{"rendered":"[Expert Column] How to Search Korean Trademarks & Patents: A KIPRIS Guide"},"content":{"rendered":"\t\t
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If you advise clients entering the Korean market, one question comes up before almost any filing: what is already on the register in Korea?<\/em> The good news is that you do not need a local subscription database to find out. Korea\u2019s official search platform, KIPRIS, is free, comprehensive, and available in English – yet many foreign practitioners either do not know it exists or use only a fraction of what it offers.<\/p>\n

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This guide explains what KIPRIS covers, how to run a meaningful search in English, and where its limits are – the point at which a machine-translated result list stops being enough and local judgment starts to matter.<\/p>\n


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What Is KIPRIS, and Who Runs It?<\/h2>\n

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KIPRIS (Korea Intellectual Property Rights Information Service) is the official search service for Korean IP rights, operated under the Ministry of Intellectual Property (MOIP) – the Korean IP office, elevated to ministry status in October 2025 and long known abroad as KIPO – together with the Korea Institute of Patent Information (KIPI). It is available at kipris.or.kr<\/a>.<\/p>\n

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\"KIPRIS

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The KIPRIS main page (kipris.or.kr). The site opens in Korean – click the translate icon at the top right to switch the interface to English.<\/figcaption>\n<\/figure>\n

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Coverage is broad: patents, utility models, designs and trademarks, from application through examination, registration, and post-grant proceedings. Unlike many free databases that show only bibliographic snapshots, KIPRIS exposes the administrative record<\/em> – examination status, office actions issued, registration details, and trial (inter partes) history before the Intellectual Property Trial and Appeal Board.<\/p>\n


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What Can You Actually Search in English?<\/h2>\n

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For most foreign users, three search types do the real work.<\/p>\n


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1. Trademark searches.<\/strong> You can search word marks by text, browse by Nice classification, and filter by applicant or registration number. Korean-language marks are the tricky part: a clearance search that checks only the Roman-alphabet spelling of your client\u2019s brand will miss Hangul transliterations – and in Korea, it is often the Hangul version that a squatter files first. A meaningful clearance search should cover the English mark, its standard Hangul transliteration(s), and phonetically similar variants.<\/p>\n

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\"KIPRIS

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A trademark search on KIPRIS (English interface): mark images, current status (Applied \/ Registered \/ Rejected \/ Ended), Nice class, and applicant at a glance.<\/figcaption>\n<\/figure>\n

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2. Patent and utility model searches.<\/strong> KIPRIS provides English bibliographic data and machine-translated full texts of Korean patents. For a freedom-to-operate snapshot or a quick check on a competitor\u2019s Korean filings, this is usually sufficient to identify the documents that matter. It is not sufficient to construe claims – machine translation of claim language is where we see foreign counsel most often misread the scope of a Korean right.<\/p>\n

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\"KIPRIS

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Patent results in the English interface: IPC\/CPC classes, application numbers, current status tags, and filters by right, status and license.<\/figcaption>\n<\/figure>\n

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3. Legal-status and trial searches.<\/strong> This is the feature we recommend most to overseas associates. Before sending a demand letter or filing an opposition, check the target right\u2019s current status: Is it registered or still pending? Has a non-use cancellation or invalidation trial already been filed? Is the registration within a renewal window? The answers frequently change the strategy – as our earlier case study on defending a non-use cancellation in Korea<\/a> illustrates.<\/p>\n

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\"KIPRIS

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Each record opens into a full detail view: application and registration numbers, priority data, examination status, opposition history and current legal status.<\/figcaption>\n<\/figure>\n

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Three Practical Tips Before You Rely on the Results<\/h2>\n

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\u2460 Check the unpublished window.<\/strong> Korean trademark applications appear on KIPRIS shortly after filing, but there is still a lag of days to weeks. A clean search today does not guarantee a clean register tomorrow – Korea is a first-to-file jurisdiction, and speed matters more than in use-based systems.<\/p>\n

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\u2461 Read status codes with care.<\/strong> \u201cApplication withdrawn,\u201d \u201crejected,\u201d and \u201cinvalidated\u201d have distinct legal consequences for what you can safely file next. A rejected application may still be under appeal; treat every adverse status as provisional until you confirm the record is final.<\/p>\n

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\u2462 Do not stop at the register.<\/strong> KIPRIS tells you what is filed, not how a Korean examiner or court will assess similarity. Korean practice on mark similarity – sound, appearance and meaning weighed against Korean-consumer perception – regularly produces outcomes that surprise foreign counsel. If a search result sits in the grey zone, that is precisely when a local opinion earns its fee. The same is true on the contentious side: standing rules in Korea are unusually open, as we explained in our column on trademark oppositions<\/a>, so a mark you find on the register can be challenged by almost anyone – including your client.<\/p>


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Where KIPRIS Fits in Your Workflow<\/h2>\n

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To be clear about how we use it ourselves: for full clearance work our firm runs professional-grade commercial databases such as WIPS<\/b> and MarkSearch<\/b>, which offer deeper similarity algorithms and analytics. But for first-pass, basic checks, KIPRIS is an excellent starting point – and it costs nothing.<\/p>\n

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KIPRIS is one of the most generous official IP databases anywhere: free, in English, and deep enough to support real pre-filing and pre-dispute analysis. Use it early and often. And when a result needs interpretation rather than retrieval – similarity in the Korean context, claim scope, or the strategy behind a trial record – that is the moment to bring in Korean counsel.<\/p>\n

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Sarang IP Law Firm works with overseas law firms and in-house teams on Korean trademark, design and patent matters, from clearance through contentious proceedings. If a KIPRIS result has raised more questions than it answered, we are happy to take a look.<\/p>\n


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This content is for general informational purposes only and does not constitute legal advice. For specific matters, please contact Sarang IP Law Firm.<\/em><\/p>\n

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If you advise clients entering the Korean market, one question comes up before almost any filing: what is already on the register in Korea? The good news is that you do not need a local subscription database to find out. Korea\u2019s official search platform, KIPRIS, is free, comprehensive, and available in English – yet many…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[],"class_list":["post-4179","post","type-post","status-publish","format-standard","hentry","category-insights"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t