Former Employee Sues KT&G for $2 Billion in Heated Tobacco Patent Dispute

May.21.2025
Former Employee Sues KT&G for $2 Billion in Heated Tobacco Patent Dispute
A former KT&G researcher is suing the company for $2 billion, alleging inadequate compensation for a heated tobacco patent. The initial claim is around $72 million, and the case is expected to go to trial.

Key Points

 

1.Former researcher Kwak Daegeun from South Korean tobacco company KT&G has filed a lawsuit against the company over compensation issues related to his inventions during his tenure. The two parties were unable to reach a settlement after mediation.

 

2.Kwak Daegeun previously worked at KT&G, leading the development of key technologies for heated tobacco devices. He claims that the company did not provide fair compensation, particularly failing to apply for international patents, resulting in the technology being used by foreign companies.

 

3.He estimated that he should receive compensation of 28 trillion Korean won (approximately $20 billion), with an initial claim amount of 100 billion Korean won (approximately $72.14 million). However, KT&G stated that they have already paid reasonable fees.

 

4.The case will enter the formal trial stage, with the expectation of initiating a technical evaluation process.

 


 

According to a report from the Seoul Economic Daily on May 20, a civil lawsuit between a former researcher at the South Korean tobacco company KT&G and the company regarding heated tobacco technology was unable to reach a settlement in mediation. This case is expected to be resolved in a formal trial.

 

On April 22, the mediation meeting at the Daegu District Court in South Korea failed to resolve the dispute over compensation for job inventions between former KT&G researcher Kwak Daegeun(곽대근) and KT&G. Kwak Daegeun worked at KT&G from 1991 to 2010, during which time he completed a full range of product design and development, including heating elements and devices for heating tobacco products. He filed a lawsuit in April 2024, alleging that he did not receive fair compensation for this job invention.

 

He claimed that the company inherited some technology and applied for patents domestically, but most of the inventions were not patented, especially internationally. Kwak Daegeun alleges that this has led to a globally renowned company A launching and selling HNB devices in China since 2017. Guo estimates that he should receive a total compensation of 28 trillion Korean won (approximately 2 billion US dollars), with the initial claim amounting to 100 billion Korean won (about $72.14 million ).

 

KT&G stated that they had engaged in thorough negotiations with Guo Dagen and had paid appropriate compensation through a technical consultant contract. The company also stated that Guo Dagen's accusations regarding international patents were unfounded, citing that they had not applied for foreign patents due to unclear commercial prospects.

 

Mediation was unsuccessful, and the court will proceed with formal trial, with an evaluation of e-cigarette technology expected. The evaluation date has not been determined. Kwak Daegeun's legal representative stated that the core of the case is about job invention, and expert evaluation will begin soon. However, both parties may still be able to resume mediation during the litigation process.

 

KT&G stated that they have provided Guo Dagen with appropriate compensation for his job invention through legal procedures and have signed an agreement to cease further litigation. They believe that the claim is in violation of the agreement and have expressed that the company will actively respond to this lawsuit.

 

We welcome news tips, article submissions, interview requests, or comments on this piece.

Please contact us at info@2firsts.com, or reach out to Alan Zhao, CEO of 2Firsts, on LinkedIn


Notice

1.  This article is intended solely for professional research purposes related to industry, technology, and policy. Any references to brands or products are made purely for objective description and do not constitute any form of endorsement, recommendation, or promotion by 2Firsts.

2.  The use of nicotine-containing products — including, but not limited to, cigarettes, e-cigarettes, nicotine pouchand heated tobacco products — carries significant health risks. Users are responsible for complying with all applicable laws and regulations in their respective jurisdictions.

3.  This article is not intended to serve as the basis for any investment decisions or financial advice. 2Firsts assumes no direct or indirect liability for any inaccuracies or errors in the content.

4.  Access to this article is strictly prohibited for individuals below the legal age in their jurisdiction.

 

Copyright

 

This article is either an original work created by 2Firsts or a reproduction from third-party sources with proper attribution. All copyrights and usage rights belong to 2Firsts or the original content provider. Unauthorized reproduction, distribution, or any other form of unauthorized use by any individual or organization is strictly prohibited. Violators will be held legally accountable.

For copyright-related inquiries, please contact: info@2firsts.com

 

AI Assistance Disclaimer

 

This article may have been enhanced using AI tools to improve translation and editorial efficiency. However, due to technical limitations, inaccuracies may occur. Readers are encouraged to refer to the cited sources for the most accurate information.

We welcome any corrections or feedback. Please contact us at: info@2firsts.com

UK Parliament Briefing Puts Vape Hardware Design and Materials in Regulatory Focus
UK Parliament Briefing Puts Vape Hardware Design and Materials in Regulatory Focus
The UK Parliament’s Parliamentary Office of Science and Technology (POST) has published a scientific briefing reviewing current evidence on the health effects of vape device components, including heating elements, power settings, metals, plastics, batteries and e-liquid ingredients, signalling growing regulatory attention to device design and whole-product systems beyond e-liquids, flavours and packaging.
Special Report
Jun.29
Product | SKE Launches FRESA PRO in the U.S., Introducing Fresh Lock Technology for E-Liquid Management in High-Capacity Vapes
Product | SKE Launches FRESA PRO in the U.S., Introducing Fresh Lock Technology for E-Liquid Management in High-Capacity Vapes
Shenzhen SKE Technology has launched the FRESA PRO in the United States, a high-capacity rechargeable disposable vape featuring Fresh Lock electromagnetic valve supply control technology. The device combines a claimed capacity of up to 40,000 puffs, dual mesh coils, dual output modes and a transparent tank design. The launch reflects the high-capacity disposable vape segment’s shift from puff-count competition toward improved e-liquid management and device-level experience.
Aug.03
China’s Jiangsu Tobacco Monopoly Bureau and Drug Regulator Target Illegal Vape Sales Disguised as Medical Devices, Define Six Violations
China’s Jiangsu Tobacco Monopoly Bureau and Drug Regulator Target Illegal Vape Sales Disguised as Medical Devices, Define Six Violations
China’s Jiangsu Tobacco Monopoly Bureau and Jiangsu Provincial Medical Products Administration have issued a joint notice targeting illegal production and sales of vape products disguised as medical devices. The notice identifies six categories of violations, including obtaining medical licenses through false materials, misusing medical device credentials, expanding production beyond approved scopes, and using medical device-related online platforms to promote or sell vape products. The action is based on China’s tobacco and medical device regulations and aims to strengthen vape oversight and consumer protection.
Aug.04
Haypp Report Shows Nicotine Pouches Gaining Ground as a Vape Alternative in the UK
Haypp Report Shows Nicotine Pouches Gaining Ground as a Vape Alternative in the UK
According to Haypp’s 2026 UK Nicotine Report, nicotine pouches are increasingly replacing both cigarettes and vaping. The UK market grew sharply, with Haypp and Northerner reporting a 60% year‑on‑year sales increase in 2025. Notably, 40% of users adopted pouches to quit vaping, nearly matching the 43% who used them to stop smoking. This indicates pouches are expanding beyond traditional smoking cessation and gaining traction among adults seeking non‑inhalable nicotine alternatives.
Jul.01
Reuters: Shopify May Ban All Vape Sales This Week Amid Illegal Market Crackdown
Reuters: Shopify May Ban All Vape Sales This Week Amid Illegal Market Crackdown
Reuters reported that Shopify may ban all vape products from its platform as soon as this week, signaling that U.S. enforcement against the illegal vape market is expanding from retailers and importers to e-commerce platforms and payment networks.
MarketBAT
Jun.23 by 2Firsts Perspectives
Product | PMI Pilots bonds by IQOS and blends in Japan, Testing a New Heated Tobacco Platform
Product | PMI Pilots bonds by IQOS and blends in Japan, Testing a New Heated Tobacco Platform
Philip Morris International (PMI) has launched a regional pilot of bonds by IQOS and dedicated blends tobacco sticks in Japan, introducing a new heated tobacco platform separate from the IQOS ILUMA ecosystem. The system uses Round Heat Technology with an external heating architecture, differentiating it from IQOS ILUMA’s induction-based platform. The pilot began on July 6, 2026, across three Japanese prefectures: Fukuoka, Saga and Nagasaki.
Jul.30