Y.P.Lee, Mock & Partners

What Y.P.Lee, Mock & Partners does

Y.P.Lee, Mock & Partners (리앤목특허법인) is a Seoul-headquartered, privately-held intellectual property law firm founded in 1985 by Representative Patent Attorney Lee Young-pil. The firm delivers a full spectrum of IP legal services across patent and utility model prosecution, trademark registration, design rights, copyright and domain name/unfair competition protection, trial and litigation, technology transactions and licensing, technology valuation, foreign filing, and WIPO-standard translation. With 410+ total employees including 200+ specialized IP professionals organized into 11 industry teams (telecommunications/ICT, AI/software/e-commerce, semiconductor/display, electrical/electronics, automotive/robotics, aerospace/shipbuilding, chemical/fiber, materials/metals, energy, bio/pharmaceutical, healthcare/medical devices) plus dedicated regional desks covering USA/Canada, Europe, China/Taiwan, Japan, India, Middle East, Central/South America, East Asia, Oceania, Russia/CIS, and Africa, the firm operates at a scale typical of a top-tier Korean IP practice.

The firm's business model is professional services billing, structured around project-based and multi-year enterprise contracts with customized fee arrangements rather than publicly disclosed pricing. It serves three primary customer tiers: (1) large domestic and foreign enterprises (notably Samsung Electronics and a global 3GPP standard patent client, plus global IT and semiconductor companies), (2) startups and SMEs (including via Korean government voucher programs and an IP counseling board), and (3) universities and government research institutions. The go-to-motion is direct enterprise field sales through the Seoul headquarters, supplemented by global referral relationships with foreign agents across 198 countries, conference participation (INTA 2026), and an SEO-optimized website with KO/EN/JP (and planned CN) language sites.

The firm manages approximately 20,000 domestic and international patent applications, trials, and litigation matters annually, supported by 41 years of accumulated casework. Recent strategic activity includes a June 2026 business cooperation agreement with the Korea Internet & Security Agency (KISA) for online brand protection and domain dispute handling, four specialized patent attorney hires in 2026 (in AI/semiconductor, electrical/robotics, materials/electronics, and food/bio domains), and recognition via the Minister of Trade, Industry and Energy Award and Korean Patent Attorneys Association Special Award in 2026. A 2003 merger with Mokpat International Patent & Law Firm strengthened the firm's foundation, and it maintains a subsidiary (Lee & Mock Law Office) for adjacent legal services.

Name

Y.P.Lee, Mock & Partners

Legal name

리앤목특허법인

Website

https://leemock.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

251–500 employees

Short description

Y.P.Lee, Mock & Partners is a Seoul-based Korean IP law firm (founded 1985) with 410+ employees and 200+ IP specialists handling 20,000+ patent filings, trials, and litigation matters annually across 198 countries for enterprise, startup, and academic clients.

Ownership category

akta.pro rank

Product category

Intellectual Property Law Services

NAICS

Legal Services (5411), Offices of Lawyers (541110)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Patent Prosecution & Portfolio Management (BPAHAMAA)

akta.pro secondary industries

IP Search, Watch & Competitive Intelligence (BPAHAMAI), Copyright Services & Content Protection (BPAHAMAC), IP Litigation & Dispute Resolution (BPAHAMAE)

Keywords

• Intellectual property law
• Patent prosecution
• Trademark registration
• IP litigation
• Technology valuation

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. 특허·실용신안 대리 서비스: 国内外 특허 및 실용신안 출원, 심사 대응, 등록 절차管理等专利代理服务 연간 20,000여건 수행.
2. 상표 및 디자인 권리화 서비스: 国内外 상표 출원 및 등록, 디자인 권리화, 포트폴리오 구축 및 관리 서비스.
3. 분쟁 해결 및 소송 대리: 심판·소송·분쟁 업무, 저작권·도메인·부정경쟁 분쟁 대응, 침해分析及 등 법률 대리 서비스.
4. 기술거래·라이선싱·실사 및 가치평가: 기술자산의 거래와 사업화 과정에서 전략적 IP 솔루션 및 기술가치평가·감정 서비스.
5. 번역 및 해외출원 대리: 세계지식재산기구(WIPO) 인정 수준의 전문 번역 서비스 및 해외출원 대리.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Y.P.Lee, Mock & Partners is a comprehensive intellectual property law firm providing end-to-end IP services including patent and utility model prosecution, trademark and design registration, copyright protection, IP trial and litigation, technology transactions and licensing, technology valuation, and foreign filing across 198 countries. The firm serves domestic and international enterprises, startups, universities, and research institutions through 11 industry-specialized practice teams and a global agent network.

Product overview

Y.P.Lee, Mock & Partners is a comprehensive intellectual property law firm providing a full spectrum of IP services. The firm operates as a single integrated practice offering nine core service lines: Patent & Utility Model filing, Trademark registration, Design protection, Copyright & Domain Name & Unfair Competition services, Trial & Litigation, Technology Transactions & Licensing, Technology Valuation, Foreign Filing, and Translation services. Additional support services include SME venture support through government voucher programs. The firm specializes in both domestic Korean and international IP protection, with established networks across 198 countries. Services are delivered through specialized practice groups organized by industry (AI/SW/E-commerce, Semiconductors/Display, Electrical/Electronics, Automotive/Robotics/Machinery, Aerospace/Shipbuilding, Chemical/Fiber, Materials/Metals, Energy, Bio/Pharmaceutical, Healthcare/Medical Devices) and by region (USA/Canada, Europe, China/Taiwan, Japan, India, Middle East, Central/South America, East Asia).

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 연간 20,000여건의国内外 출원, 심판 및 소송 처리
• +2 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• 한국인터넷진흥원 (KISA)coreStrategic or Co-development Partner · 18 June 20262026년 6월 18일 리앤목특허법인은 한국인터넷진흥원(KISA)과 업무협약을 체결하였다. 이번 협약을 통해 양 기관은 K-브랜드 온라인 보호와 도메인이름 분쟁 조정 사건을 신속히 처리하는데 협력해 나갈 예정이다.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Cheonji Patent & Law Firm: Established Korean patent firm with similar industry-specialized team structure and international filing network. Direct competitor for mid-to-large enterprise patent mandates.
• Kim & Chang: Korea's largest full-service law firm with a leading IP practice covering patents, trademarks, licensing and IP litigation. Most directly comparable Korean peer in scale, enterprise client base, and cross-border IP capabilities.
• Yoon & Yang: Major Korean law firm with a recognized IP/patent litigation group. Comparable in serving large Korean enterprises and multinational clients on patent prosecution and dispute resolution.
• Lee & Ko (법무법인 광장): Major Korean law firm with a strong IP/patent litigation and prosecution practice serving large Korean corporates and multinationals. Comparable on enterprise IP mandates, SEP work, and patent portfolio management.
• FirstLaw (퍼스트로우): Korea-focused IP-specialist firm combining patent attorneys and lawyers, comparable in technical specialization and enterprise client base in Korean IP prosecution and litigation.
• Yulchon: Top-tier Korean law firm with a sizable IP practice covering patent prosecution, licensing and litigation. Competes directly with Lee & Mock on cross-border IP mandates and enterprise clients.
• YOU ME Patent & Law Firm: Korean patent-specialist firm with broad technical coverage and global filing capability. Comparable peer in IP prosecution-only service model serving Korean and international clients.

Broad incumbents

• Fish & Richardson: Major US IP-focused firm with global patent prosecution and litigation capabilities. Comparable on serving technology clients (semiconductors, AI) with complex cross-border patent portfolios.
• Finnegan: Leading US IP-specialist firm with strong SEP and patent litigation practice. Comparable on cross-border patent prosecution and high-stakes IP dispute work, and a competitor for Korean clients' US/EU IP needs.

Regional players

• Sughrue Mion: Asia-Pacific-rooted IP firm with long-standing Korean/Japanese practice and global patent prosecution capability. Comparable in cross-border filing and Asian patent prosecution services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Y.P.Lee, Mock & Partners