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Category Archives: Insights

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[Expert Column] Posting Book Covers on a Rental Site: Is it Copyright or Trademark Infringement?

InsightsBy sarangip11/26/2025

Can a rental business post book covers online? Yes. A Korean court ruled this is “Fair Use” and not trademark infringement. Learn the legal boundaries for e-commerce.

[Expert Column] Can a “Poorly Written Description” Kill Your Patent?

InsightsBy sarangip11/26/2025

Can a typo kill your patent? Yes. The Korean Supreme Court invalidated a silicon patent due to unclear measurement methods. Learn why high-quality drafting is essential.

[Expert Column] “LEGO” is for Toys, Not Pharma: The Supreme Court Ruling on Trademark Dilution

InsightsBy sarangip11/26/2025

Can you use “LEGO” for medicine? The Korean Supreme Court says NO. Learn about the landmark ruling on trademark dilution (2020Hu11943) and what it means for brand protection.

[Expert Column] The Unprecedented Trademark Cancellation of “Gwangcheon Kim”: A First in Geographical Indication Collective Marks

InsightsBy sarangip11/26/2025

The “Gwangcheon Kim” Geographical Indication (GI) Collective Mark has been cancelled in an unprecedented Korean Patent Court ruling. Learn why and what it means for the market.

[Expert Column] Does “Upcycling” Luxury Bags Infringe Trademark Rights?

InsightsBy sarangip11/26/2025

Is upcycling luxury bags legal? A recent Korean court ruling says NO. Learn why refashioning Louis Vuitton bags constitutes trademark infringement.

[Expert Column] If I Register “English + Korean,” Can I Use Just the English?

InsightsBy sarangip11/26/2025

Can you use only the English part of a registered English-Korean trademark in Korea? Yes. Learn about the Supreme Court ruling (2012Hu2463) regarding trademark use.

[Expert Column] Is Giving Away Counterfeits as “Free Promotional Gifts” Trademark Infringement?

InsightsBy sarangip11/26/2025

Are giving away fake goods as free gifts considered trademark infringement in Korea? Yes. Learn about the Supreme Court ruling (2021Do2180) and how to protect your business.

[Expert Column] Selling Counterfeits via Purchasing Agencies: Are You Exempt from Trademark Infringement?

InsightsBy sarangip11/26/2025

Are purchasing agencies liable for counterfeits in Korea? Yes. Discover the key court ruling on trademark infringement and “willful negligence” for buying agents.

Hello, I’m Sohyun. (Founder’s Story)

InsightsBy sarangip11/26/2025

Hello, I’m Sohyun. Beyond the title of a Patent Attorney, I share my journey, beliefs, and the ‘Sarang Way’ of working—dedicating sincerity and expertise to protect and grow your brand.

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