Yoon & Lee International Patent & Law Firm

Yoon & Lee was founded in 1989 and offers a comprehensive range of services for IP rights, including trademarks and designs. The firm is renowned for both its ability to foster long-term relationships with clients, based on its emphasis on client trust and satisfaction, and for its large number of technical experts. The managing partner is a past president of both the Korean Patent Attorneys Association and the Korean Region Group of the Asian Patent Attorneys Association, as well as ex-president of the Intellectual Property Forum.

Trademark and design services

Satisfying a wide range of clients in various sectors

The firm provides a wide range of trademark and design services, which has enabled it to act for businesses in all sectors – from established global organisations to small and medium-sized enterprises, as well as a globally expanding franchise operation. It also has a range of clients both in terms of geographical distribution and industrial sectors, with particular experience in cosmetics, software, healthcare, pharmaceuticals, and foods and beverages. In Korea, Yoon & Lee has developed a longstanding relationship with one of Korea’s major healthcare and beauty products companies, to which it provides search and registration services in a wide range of global markets, as well as trial for cancellation and invalidation services in Korea.

Trademark and design team

Small in size, big in experience

The trademark team is a tight-knit group that is able to provide excellent and individualised services to all clients. In particular, it has very strong expertise on Korean trademark practices as the head of the team is a former trademark examiner and trial examiner at the Korea Intellectual Patent Office with over 25 years of experience in the IP area.

The team also includes a US attorney with over seven years of experience dealing with trademark issues in Korea, as well as having undertaken in-depth studies in relation to copyright, trademarks and designs in the United States. This enables the team to provide a global perspective and to meet the requirements and expectations of its international clients. In the past year, a Korean attorney at law has joined the team in order strengthen its litigation activities.

The team provides fluent services in English, Korean and Japanese.

Efficient and economical service

Highest quality at reasonable cost

A particular strength of the team is its ability to prosecute trademark applications seamlessly. By conducting detailed investigations on a potential trademark and possible risks based on the team’s knowledge and experience of the trademark examination process, the firm’s professionals reduce the possibility of receiving office actions. Clients benefit from a smoother, quicker and more economical process made possible by the experience of the team members, with the team head in particular able to draw on his previous career as a trademark examiner. Deep knowledge of Korean trademark practices also enables the firm to provide the best solutions for protecting its clients’ IP rights and representing clients in trials and assignments, among other things.

The firm’s relative small size also means that all clients benefit from the direct input from the most experienced professionals, rather than cases being handled by junior staff. The costs of the firm’s high-quality services however remain moderate compared with major law firms.

Summary of team services


  • Filing and prosecution of domestic and international trademark applications
  • Consultancy services on trademarks
  • Assistance in developing brand selection strategy planning
  • Trademark registrability searches
  • International trademark applications under the Madrid Protocol

Enforcement of trademark rights

  • Litigation of infringement cases
  • Negotiation and drafting of assignment and transfer agreements
  • Assistance with licensing and franchising transactions
  • Warning letters and settlements
  • Maintenance of registrations and renewal services


  • Filing and prosecution of domestic and international design applications
  • Consultancy services on designs
  • Design application strategy planning
  • International design applications under the Hague Agreement

Other services

  • Consultancy services through www.yoonandlee.com
  • Copyright registrations
  • Unfair competition and anti-counterfeit measures

Contact details

Yoon & Lee International Patent & Law Firm
Floor 3 Ace Highend Tower 5
226 Gasan Digital 1-ro
Seoul 08502
South Korea

Professional contacts

Sample client list

  • AmorePacific Corp
  • CKD Bio
  • Espoir Corp
  • Hangzhou Hikvision Digital Technology
  • Hwaseung Chemical
  • Lite Pharm Tech
  • Mate Networks
  • Navipharm
  • Round One Corp
  • Stripe Inc

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