Is Your Mark Too Descriptive? Understanding Article 33 Distinctiveness in South Korea

The most fundamental requirement for trade mark registration in South Korea is distinctiveness — the capacity of a sign to identify the goods or services of one trader and distinguish them from those of another. The Korean Intellectual Property Office (KIPO) evaluates distinctiveness under Article 33(1) of the Korean Trademark Act (KTA), which sets out seven categories of marks that are refused on absolute grounds. Understanding these categories — and the limits of stylisation and design elements in overcoming them — is essential for any brand entering the Korean market.

The Legal Framework: Article 33(1) of the Korean Trademark Act

Article 33(1) lists seven types of marks that lack distinctiveness and are therefore unregistrable. The most frequently encountered are:

• Article 33(1)(i) — Generic names: Marks that indicate only the common name of the goods. For example, “Computer” for computers or “Coffee” for coffee products. These are the common designations for the product itself and must remain available to all traders.
• Article 33(1)(ii) — Customary marks: Marks that have become customary in the normal course of trade for the relevant goods or services. This covers terms, abbreviations, or symbols that the trade has adopted as standard references.
• Article 33(1)(iii) — Descriptive marks: Marks that describe the quality, raw materials, efficacy, intended use, quantity, shape, price, method of production, processing, or use of the goods. This is the most commonly cited ground for refusal and captures a wide range of laudatory and informational terms.
• Article 33(1)(iv) — Conspicuous geographic names: Marks consisting of a well-known geographical name, its abbreviation, or a map. This ground is discussed in detail in a separate article.
• Article 33(1)(v) — Common surnames: Marks consisting of a common surname represented in a standard manner.
• Article 33(1)(vi) — Simple and common marks: Marks consisting of very simple or commonly used shapes, figures, or letter combinations that consumers would not perceive as trade marks.
• Article 33(1)(vii) — Catch-all non-distinctiveness: Any other mark by which consumers cannot identify the person whose goods or services are indicated. This catch-all provision captures marks that may not fall neatly into the preceding categories but still lack the capacity to function as source identifiers.

How KIPO Assesses Descriptiveness

KIPO’s examination of descriptiveness under Article 33(1)(iii) focuses on whether the mark directly and immediately conveys information about the goods or services to the average Korean consumer, without requiring any intellectual effort or imagination. The assessment considers the mark’s meaning in the Korean language, but also extends to foreign-language terms — particularly English — that are widely understood or commonly used in the Korean market.

This is a particularly important point for international brands. Korea has a high level of English-language familiarity in commercial contexts, and KIPO examiners routinely assess English descriptive terms against the understanding of Korean consumers. Words like “Fresh,” “Clean,” “Smart,” or “Natural” are frequently refused as descriptive, even in English, when applied to relevant goods.

The Stylisation Trap: Why Minor Design Changes Rarely Help

A common misconception among applicants is that adding a distinctive font, a colour scheme, or minor graphic embellishments to a descriptive word will transform it into a registrable mark. KIPO takes a strict approach to this strategy. If the word element remains the dominant feature of the mark and is descriptive, minor stylisation will generally not overcome the refusal.

The reasoning is straightforward: consumers perceive marks primarily through their dominant element. If that element is a descriptive word, the average consumer will read and understand the word as a description of the goods, regardless of the font or colour in which it appears. The stylisation must be so distinctive that it overwhelms the descriptive word and becomes the primary element consumers recognise — at which point the mark is effectively being registered on the strength of the graphic element, not the word.

This means that applicants relying on stylisation must invest in a genuinely distinctive and memorable design that can stand on its own as a source identifier. A standard italic font, a common geometric border, or a gradient colour effect will almost certainly be insufficient.

The Combination Approach

KIPO’s Trademark Examination Guidelines provide that when two or more non-distinctive elements are combined, the resulting mark may be registrable if the combination creates a new and distinctive overall concept that goes beyond the sum of its parts. However, this exception is narrowly applied. Simply combining two descriptive terms (e.g., “Quick” + “Clean” for cleaning services) will typically be refused unless the combination produces an unexpected or distinctive new meaning.

The combination of a non-distinctive word with a truly distinctive graphic element is more likely to succeed, but the resulting registration will typically protect only the composite mark as a whole. Enforcement against parties using the descriptive word element alone will be extremely limited.

Foreign-Language Descriptive Terms: The Hangul Factor

An important consideration for international applicants is that KIPO assesses both the foreign-language mark and its likely Korean-language transliteration in Hangul. When Korean consumers encounter a foreign word, they instinctively transliterate it into Hangul for pronunciation. If the resulting Hangul rendering is phonetically similar to a known Korean descriptive term, or if the English word is widely understood as descriptive, the mark will be refused.

This creates a dual assessment: the mark must be non-descriptive both in its original language and when perceived through the lens of the Korean consumer. Applicants should test their marks not only in English but also consider how Korean consumers will read, pronounce, and understand them.

Strategic Recommendations

• Choose inherently distinctive marks: Coined words, arbitrary terms, and suggestive marks avoid the descriptiveness issue entirely and offer the strongest protection in Korea.
• Invest in genuine distinctiveness if using descriptive elements: If a descriptive word is important to the brand, pair it with a highly distinctive graphic element that consumers will recognise as the primary identifier.
• Do not rely on minor stylisation: A fancy font or colour alone will not save a descriptive word mark. The design must be the dominant element.
• Test Hangul perception: For foreign-language marks, evaluate how the mark will be perceived when transliterated into Hangul and pronounced by Korean consumers.
• Consider the acquired distinctiveness route: If the mark has been extensively used in Korea, Article 33(2) provides a pathway to registration based on secondary meaning (covered in a separate article).

Common Mistakes

• Assuming foreign-language descriptive terms are safe: KIPO routinely refuses English descriptive terms understood by Korean consumers.
• Relying on stylisation to rescue a descriptive word: Unless the design element dominates, the descriptive word will still control the overall impression.
• Combining two descriptive words and expecting registration: Two non-distinctive elements rarely create a distinctive whole unless the combination generates an entirely new concept.
• Ignoring the catch-all provision: Article 33(1)(vii) captures marks that may not be obviously generic or descriptive but still fail to function as source identifiers. KIPO applies this broadly.

Key Takeaway

Article 33 of the Korean Trademark Act establishes a rigorous distinctiveness standard that KIPO applies strictly. Descriptive terms, generic names, and common expressions are refused regardless of minor stylisation if the word element remains dominant. For international brands entering Korea, the critical lesson is that distinctiveness is assessed from the Korean consumer’s perspective — including the perception of foreign-language terms through the Hangul lens. The most effective strategy is to invest in inherently distinctive marks or, where descriptive elements are unavoidable, to develop genuinely distinctive graphic presentations that can carry the application.