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Daeryun Law LLC, with expertise across practice areas,
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Trademark Infringement | Punitive Damages Recognized Against a Company That Repeatedly Infringed a Trademark

After it was revealed that a company that had received a damages judgment for trademark infringement infringed the trademark again, the court recognized punitive damages for the "period of willful trademark infringement."

CONTENTS
  • 1. Trademark Infringement, What Were the Detailed Circumstances?
    • - Trademark Infringement, What Are the Relevant Statutes?
  • 2. Trademark Infringement, What Was the Court of First Instance's Determination?
  • 3. Trademark Infringement, What Was the Patent Court's Determination?
    • - What Are "Punitive Damages" in Trademark Infringement?
  • 4. Trademark Infringement, Daeryun's Strategy

1. Trademark Infringement, What Were the Detailed Circumstances?

The plaintiff that filed the trademark infringement lawsuit was Company A, a young startup that manufactured and sold organic snacks and similar products.

Company A had registered the trademark "Ai-O" and sold its products through online shopping malls.

Meanwhile, Company B, a large corporation that sold baby food products, had been selling formula, baby food, and snack products under the name "Agi-O." After the Ministry of Food and Drug Safety prohibited the use of the term "agi" (baby) in the labeling and advertising of general food products, Company B changed its trademark to "Ai-O" and began selling its products.

Company A then claimed that Company B had, willfully or negligently, sold products under a trademark identical or similar to Company A's trademark and thereby infringed its trademark right, and filed a lawsuit seeking 1 billion won in damages.

In particular, Company A argued that, as Company B advertised its products through means such as internet search advertising, Company A's advertising exposure decreased, which significantly harmed its sales.

Trademark Infringement, What Are the Relevant Statutes?

🔗A trademark infringement lawsuit is a lawsuit brought when a third party other than the trademark holder, without justifiable grounds, displays another's registered trademark on its own goods or distributes or advertises those goods.

■ Conditions for Establishing Trademark Infringement

✔ The trademark right validly exists

✔ Use within the scope of protection of the trademark right

✔ Unlawful use without legitimate authority

✔ Use as a trademark rather than for another purpose

✔ Use as to which the effect of the right is not limited

■ Penalties for Trademark Infringement

A person who infringes a trademark right or an exclusive license may be sentenced to imprisonment for up to 7 years or a fine of up to 100 million won.

2. Trademark Infringement, What Was the Court of First Instance's Determination?

The District Court, which heard the trademark infringement lawsuit, ruled in favor of Company A. It found that Company B had infringed Company A's trademark right.

The court held that "with the exception of certain products, Company B infringed Company A's trademark right and is liable to compensate the damage Company A sustained as a result." It also found that "considering the defendant's market dominance, advertising share, and influence over consumers, among other factors, this also directly affected the decline in Company A's sales."

However, taking into account the impairment of the trademark's distinctiveness caused by the infringing act and the scale of the damage, the court recognized only 500 million won of the 1 billion won claimed by Company A as the amount of compensation.

3. Trademark Infringement, What Was the Patent Court's Determination?

Company B did not accept the lower court's determination on the trademark infringement and appealed; however, the Patent Court, which conducted the appellate proceedings, upheld the judgment of the first instance, recognized Company B's trademark infringement, and additionally recognized punitive damages.

The court stated that "because the plaintiff competes with the defendant in the same line of business, it is clear that it sustained business losses due to the trademark infringement," and made clear that liability for compensation existed.

In addition, the court recognized punitive damages at double the amount for the "period during which the trademark continued to be used despite knowledge that it was infringing."

What Are "Punitive Damages" in Trademark Infringement?

The following explains the "punitive damages" recognized by the Patent Court.

Company B committed willful infringement even after the "Ai-O" trademark was held invalid with finality at the first instance, and was ordered to compensate twice the resulting damage*, for a total damages award of 700 million won.

The court noted that "Company B is a leading enterprise with annual revenue of more than 100 billion won, and on the basis of its position and capital strength in the food industry, it dominated online search terms and thereby foreclosed Company A's business opportunities."

The court also found that Company B's efforts to remedy the harm were insufficient, pointing to the fact that it did not delete the infringing trademark's advertisements on social media even after the date on which the trademark's invalidity became final.


* Total damages of 700 million won = [500 million won (damage from the start of the trademark infringement up to the date before the invalidity became final)] + [100 million won (damage from the date the invalidity became final up to the date of the additional infringement) * 2 (punitive damages)]

4. Trademark Infringement, Daeryun's Strategy

We analyzed the court's judgment, which ordered the addition of punitive damages for the repeated use of the trademark even after the trademark infringement had been recognized and the trademark's invalidity had become final.

If you have been subjected to trademark infringement, you can first warn the infringer by sending content-certified mail or an official notice.

If the infringing conduct continues thereafter, legal proceedings will be necessary. Trademark infringement may give rise to criminal punishment, and a civil claim for damages may also be filed on grounds such as lost sales and a decline in market share resulting from the infringement.

If you need assistance with related matters, you are welcome to request support from the 🔗Intellectual Property Group of Daeryun Law Firm LLP.

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* January 2026 Bar Association Transit Permit Issuance Criteria

*Complies with Korean Bar Association Advertising Regulations Article 4 Paragraph 1

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