CONTENTS
- 1. Patent Litigation: the Client Who Requested Assistance
- - A Strategic Response to Protect the Technology
- 2. Legal Procedures Related to Patent Litigation
- 3. Patent Litigation: Assistance From the Intellectual Property Attorney
- - In-Depth Legal and Technical Analysis
- - Securing Objective Evidence
- - Building Strategic Legal Reasoning
- 4. Patent Litigation Outcome: “Favorable Judgment”
- - If You Are Facing Litigation
1. Patent Litigation: the Client Who Requested Assistance
Facing patent litigation, the client, confronted with the risk of having a core company technology invalidated and with the resulting business risk, requested strategic assistance from an intellectual property attorney.
A Strategic Response to Protect the Technology
The client was a small or medium-sized enterprise holding smart sensor technology based on the Internet of Things (IoT), and it had made the development of next-generation home network products a core part of its strategy.
However, when a competitor filed a patent invalidation trial on the ground that the technology was similar to an existing patent, the client faced a situation in which its core technology itself was threatened.
The validity of the patent was recognized on some issues, but the matter developed into litigation and the dispute became prolonged. During this process, direct business risks arose, including delays in launching new products, a decline in investor confidence, and a weakening of market share.
Accordingly, the client requested strategic assistance from an intellectual property attorney in order to carry out technical analysis and a legal response at the same time.
2. Legal Procedures Related to Patent Litigation
Patent litigation is broadly divided into two types.
1. A suit to cancel a decision, which challenges whether a decision of the Intellectual Property Trial and Appeal Board is unlawful
2. An infringement suit (appellate proceedings), brought by appealing against the judgment at first instance in a patent infringement case
▶ Suit to Cancel a Decision
A party must file suit with the Patent Court within 30 days from the date of receiving the written decision.
For a refusal decision, the Commissioner of the Korean Intellectual Property Office is the defendant; for an invalidation decision or a decision confirming the scope of a right, the opposing party is the defendant.
The Patent Court may rule only on whether the decision was lawful, and it cannot directly allow registration or declare the patent invalid.
▶ Infringement Suit (Appellate Proceedings)
Since 2016, the Patent Court has had exclusive jurisdiction over the appellate proceedings in these cases.
At the Patent Court, technical examiners and specialized judges hear the case together, addressing technical facts and legal principles comprehensively.
3. Patent Litigation: Assistance From the Intellectual Property Attorney
The client's case was a suit to cancel a decision, which followed after a competitor filed a patent invalidation trial and then appealed against its result into litigation.
In such a case, the court reviews simply whether the decision of the Intellectual Property Trial and Appeal Board was lawful, so specific materials and logical grounds capable of demonstrating the distinctiveness and inventive step of the patent become key.
Accordingly, the following strategic response was necessary.
▷ Demonstration of substantial performance improvement: highlighting the objective advantages in energy efficiency, response speed, user convenience, and the like
▷ Strengthening the legal reasoning: developing the argument around the principle that mere similarity in outward appearance cannot, by itself, negate an inventive step
In-Depth Legal and Technical Analysis
The intellectual property attorney made a detailed comparison between the client's smart sensor technology and the prior patent from structural and functional perspectives.
In particular, the attorney specifically identified the distinctiveness in technical elements such as energy consumption efficiency, sensor response speed, and data transmission stability.
Through this, the attorney highlighted the originality and industrial value of the invention and supported the validity of the patent.
Securing Objective Evidence
By collecting experimental results, conformity tests against international standards, and user evaluation data, the attorney objectively demonstrated the advantages of the invention.
The intellectual property attorney worked with technical experts to secure the reliability of the materials and organized them so that they could be directly connected to the legal arguments.
The prepared evidence played a key role in helping the court clearly understand the technical differences.
Building Strategic Legal Reasoning
The intellectual property attorney developed the reasoning on the basis of precedent holding that, even where there is similarity in outward appearance, an inventive step cannot be negated if a substantial improvement in performance exists.
The attorney actively cited relevant academic papers and foreign precedents to strengthen the objectivity and persuasiveness of the argument.
Furthermore, the attorney highlighted that the invention contributes to industrial competitiveness and technological development, and presented this to the court for its consideration.
4. Patent Litigation Outcome: “Favorable Judgment”
The court found that, although the client's smart sensor technology was in part structurally similar to existing foreign patents, it possessed a substantial distinction in performance and efficiency.
Accordingly, the court recognized the validity of the client's patent and dismissed the competitor's invalidation claim in its entirety.
As a result, the client was able to protect its core technology in a stable manner and obtained a favorable effect on the launch of new products and the attraction of investment.
If You Are Facing Litigation
Patent litigation is not merely a legal dispute; it is a complex field that requires technical analysis and legal review at the same time.
For a company to respond on its own, limitations inevitably arise in terms of specialized evidence collection, the construction of legal arguments, and the management of long-term litigation.
Drawing on practical experience in various patent disputes and an understanding of industry-specific technology, this firm provides tailored strategies suited to each company's circumstances.
Through a comprehensive response that combines technical analysis with legal review, we work to protect a company's patent assets in a stable manner and to preserve their business value.
If a patent-related dispute arises, you may consider the law firm Daeryun 🔗Schedule a Legal Consultation to receive the assistance of an attorney experienced in patent litigation.
This content is based on actual case studies of Daeryun Law LLC with some adaptations, and the copyright belongs to our firm.
Unauthorized reproduction, duplication, or distribution and other copyright infringements may result in legal action under applicable laws.
