
In this case, a customer who owned an authentic luxury bag commissioned a repair/alteration (reforming) service. The service provider disassembled the bag and reconstructed it into different items, such as a new bag or wallet, before returning it. Between 2017 and 2021, the provider charged hundreds of dollars (approximately $75 to $525 USD / 100,000 to 700,000 KRW) per service. In 2022, the trademark owner (Louis Vuitton) filed a lawsuit claiming trademark infringement.

The lower courts (first and second instances) generally found infringement and ordered an injunction along with approximately $11,300 USD (15 million KRW) in damages. Their reasoning was that the trademark remained visible on the newly formed product, which could mislead third parties into believing it was an official product.
However, in its ruling on February 26, 2026, the Supreme Court reversed and remanded the case to the Patent Court, establishing a completely new framework for determining what constitutes the "use of a trademark" in the context of product reforming.
The Supreme Court's ruling can be simplified as follows:
1. Personal Reforming for Private UseIf an individual reforms their own item strictly for personal use, it is generally not considered the "use of a trademark" under Trademark Law, even if the trademark remains intact on the reformed product, provided it is not offered or distributed in the commercial market.
2. The Same Applies When Using a Service ProviderIf an owner commissions a reform for personal use, and the provider completes the work and returns it to the owner, maintaining the trademark during this process does not, in principle, constitute trademark use.
Key Takeaway: The mere fact that the provider received payment for the alteration does not automatically establish trademark use. Rather than mechanically applying the statutory definition of trademark use (e.g., displaying, transferring, exhibiting, or advertising), the Court established distribution in the commercial market as the primary criterion, aligning with the core functions of the trademark system (indicating the source and preventing confusion).
The Supreme Court also clearly outlined exceptions that the industry must carefully note.
Even if a service appears to be for a customer's personal use on the surface, trademark infringement can occur if the provider substantially controls or leads the process, producing and selling the reformed items as their own products in the commercial market.
The Supreme Court provided a checklist of factors to comprehensively evaluate whether such "special circumstances" exist:
Crucial Point: The Supreme Court explicitly stated that the burden of proof lies with the trademark owner. Rights holders must provide evidence proving that the activity is substantially manufacturing and distribution, rather than just a superficial reforming service.
1. Shifting to a Market-Centric ApproachArticle 2 of the Trademark Act defines "use" broadly (displaying on goods, transferring, exhibiting, advertising, etc.). While lower courts relied on this literal structure, focusing on the existence of a new product bearing the trademark, the Supreme Court prioritized whether the goods enter the commercial market, functionally aligning the law's scope.
2. Guarding Against Overreach into Private UseLogically, this ruling restricts the scope of trademark protection to the commercial market where the risk of source confusion actually exists, effectively cutting off trademark interference in the private sphere.
3. Maintaining Strong Brakes on Commercial UpcyclingThe Court did not grant unlimited permission for reforming. It left a clear opening for infringement claims the moment products flow into the market (manufacturing, sales, distribution). This careful balance is why the case is receiving international attention.

Below is a risk assessment tree translating the Court's factors into practical scenarios.
A. Low Risk (Generally Non-Infringing)
B. High Risk (High Likelihood of Infringement due to Special Circumstances)
Following this ruling, it is no longer sufficient for rights holders to simply claim that a trademark remains visible or might cause confusion. They must now prove:
Evidence of market provision (sales posts, shipping records, inventory, financial settlements) will be the key to establishing infringement.
Businesses (especially distribution platforms) offering reform services can structurally lower their risk by reverse-engineering the Court's "special circumstances" criteria:
These records will serve as objective evidence that you are providing a service, not manufacturing goods, should a dispute arise.
Because this is a remanded case, the Patent Court will now reinvestigate whether this specific case was truly a personal request service or substantial manufacturing, using the Supreme Court's criteria. Practically, a fierce evidentiary battle is expected regarding advertising, sales circumstances, repetitive patterns, pricing, and material ratios.
The message from the Supreme Court is clear: Personal reforming (private sphere) is largely outside the reach of trademark rights, while manufacturing and distribution (market sphere) remain strictly governed by them. The exact boundary will be defined by the accumulation of "special circumstance" precedents.
For the luxury reform and upcycling business, risk hinges entirely on this boundary. Pine IP Firm provides one-stop support tailored to these new Supreme Court standards, from diagnosing trademark infringement risks for repair services to developing evidentiary strategies for brands, and designing compliance frameworks (terms of service, consent forms, and guidelines).