Nguyen Duc Long

Nguyen Duc Long is our exclusively recommended Intellectual Property Law expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Nguyen directly using the contact details listed above.

Mr. Nguyen Duc Long is a licensed and registered Lawyer and Patent Attorney in Vietnam. He also is the Founder and Managing Partner of TRI VIET & ASSOCIATES – a full licensed International IP Agent & Law Firm in Vietnam. For more information about TRI VIET & ASSOCIATES and personnel, you are kindly invited to visit

Prior to the foundation of TRI VIET & ASSOCIATES, Mr. Nguyen Duc Long has involved in the field of intellectual property, especially in addressing issues relating to patent since 1992. He was the Head of Patent Department of the Investment Consultancy & IP Company (a first and leading stated owned IP company belonging to Ministry of Science and Technology) from 1992 to 2002, ALPHA Intellectual Property Agent from 2002 to 2004, and TRI VIET & ASSOCIATES from 2004 to present. In the capacity as the Head of Patent Department of these IP firms, Mr. Long has managed and directly handled more than one thousand patent applications (especially PCT applications) of the clients from USA, England, Japan, France, Germany, Korea, Taiwan…. and from other countries around the world. Therefore, Mr. Long has much experience and expertise in patent prosecution, enforcement, litigation and other related-patent issues in Vietnam. These have been certified by Director of the Investment Consultancy & IP Company and recommended by NOIP’s Officers.

Mr. Long was an APAA Patent Committee member of Vietnam Recognized Group in the period of 2009-2012, and in this period, he has made and reported the Vietnam Patent Country Reports at annual APAA council meetings.

Practice Areas
  • Patents
  • Trademarks
  • Designs
  • Licensing
  • Franchising
  • Technology Transfer
  • Litigation
Professional Experience
  • 2009-2012: APAA Patent Committee Member of Vietnam Recognized Group
  • 2004 to present: Managing Director, IP Lawyer, Registered Patent Attorney – Tri Viet & Associates
  • 2002-2004: Head of Patent Division – Alpha Intellectual Property Law Firm.
  • 1992-2002: Investment Consultancy & IP Company – a first and leading state owned IP company belonging to Ministry of Science, Technology and Environments
  • 1989-1991: Physical Engineer – Vietnam National Center for Environmental Protection
Professional Memberships
  • Vietnam Bar Federation (VBF)
  • Hanoi Bar Association (HBA)
  • Vietnam Intellectual Property Association (VIPA)
  • Asian Patent Attorney Association (APAA)
  • International Trademark Association (INTA)
  • 1998: LLB – Hanoi Law University
  • 1996: Patenting in Asian Countries course, held by WIPO in Singapore
  • 1996: Sales & Marketing Management course, held by AOTS (Japan) and PSB (Singapore) in Singapore
  • 1988: BSc – Physical Department – Hanoi University of Science – National University of Vietnam
  • Vietnamese
  • English

Firm Description:

TRI VIET & ASSOCIATES is a registered and fully licensed INTELLECTUAL PROPERTY & LAW FIRM based in Hanoi, Vietnam. The firm was founded in 2004 by Mr. Nguyen Duc Long – an engineer, licensed and registered Patent Attorney and Attorney at Law, who has involved in the field of intellectual property since 1992, especially in dealing with PATENT related matters, and two other qualified partners: one is a trademark attorney and the other is a licensed lawyer, who also have nearly 25 years of experience in TRADEMARK, LITIGATION and other IP related matters in Vietnam.

Practice Areas and Jurisdictions

TRI VIET & ASSOCIATES provides clients with a full range of IP services, strongly focuses on PATENT and PCT services, including but not limited to Searching, Advising, Counseling, Drafting, Translation, Preparation, Filing, Prosecution, Appeal and Opposition, Licensing, Transferring, Litigation, Maintenance, etc. in Vietnam, Laos, Cambodia, Myanmar and in any other jurisdictions upon client’s requests.

Industries and Technologies

TRI VIET & ASSOCIATES provides PATENT and IP services in a wide range of industries and modern technologies, including but not limited to:

AgriBio / Agricultural / AgriFood / Agrochemicals / Automation / Automotive / Aviation / Biochemical / Biomedical / Biophysical / Biotechnology / Chemical / Chemicals / Clean & Green Technology / Communications / Computer / Construction / Consumer Products / Edutech / Electrical / Electromechanical / Electronic / Energy / Food & Beverage / Genetic / Laser / Machinery / Manufacturing / Materials / Mechanical / Mechatronic / Medical / Metallurgy / Molecular Biology / Nanotechnology / Oil and Gas / Optical / Packaging / Petro-Chemical / Pharmaceutical / Pharmaceuticals / Physical / Polymers / Printing / Robotics / Semiconductor / Signal Processing / Telecommunications / Textiles / Transportation / Unmanned Aerial Vehicles ….

Human Resource

TRI VIET & ASSOCIATES has a team of in-house patent and trademark attorneys and practitioners, who hold the law, science and engineering degrees and some of them hold advanced degrees from the universities in Vietnam and abroad. In addition, a network of local technical advisers from technical universities, science universities and research institutes has been established and it always supports our patent staff in difficult, specific and high-tech cases.

Physical Resource

A computerized IP record management system (including hardware and software) together with the digitization of records enable us to store, manage, process and execute the works efficiently, quickly and accurately.

Professional Relationships

TRI VIET & ASSOCIATES has a good professional relationship and effective cooperation with state competent authorities to take protection, enforcement and handling infringements of client’s IP rights in Vietnam, such as Courts, Inspectorates, Market Management Agencies, Customs Offices, Police Agencies and the People’s Committees of all levels.

The location of TRI VIET & ASSOCIATES head office in Hanoi, the capital of Vietnam, about 6km away from NOIP, plus a close and professional relationship with NOIP, enable us to directly meet, work and discuss with examiners for solving any urgent and complicated problem in relation to a pending application.


TRI VIET & ASSOCIATES is a member of VBF (Vietnam Bar Federation), HBA (Hanoi Bar Association), VIPA (Vietnam Intellectual Property Association), INTA, AIPPI and APAA.

With nearly 30 years of experience in the field of IP protection and enforcement in Vietnam, along with the above highlighted strengths in professional experience, human resources, physical resources and professional relationships, all that enable TRI VIET & ASSOCIATES to provide IP services in general and PATENT services in particular to the domestic and international clients in all technical fields, ranging from multinational companies to individual inventors in a qualitative, effective, reliable, and cost-effective manner.


Le Quoc Chen

Le Quoc Chen is our exclusively recommended Patent Law expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Le Quoc directly using the contact details listed above.

Welcome to ANNAM IP & LAW – one of the most professional Intellectual Property & Law Firms in Vietnam, member of APAA, INTA and VIPA. We provide our clients with a full range of intellectual property services to protect their inventions, trademarks, industrial designs and related matters not only in Vietnam, but also in Laos, Cambodia, Myanmar and other jurisdictions. We also provide our clients with legal advices on Finance and Corporate and Business Law.

With a staff consists of lawyers and patent and trademark agents practicing in the intellectual property field since 1992, we have been handling thousand of patent, trademark and design applications for a large scale of clients from individuals to corporations.

Our Patent Division:

As our patent attorneys and technical staffs have graduated in different technical universities that covers Chemical, Pharmaceutical, Bio-technology, Electrical, Mechanical fields etc., patent applications have been prepared, followed and handled by person who is in the right technical field of the invention.

With a deep understanding the importance of patent specification translation, in addition to our in-house translation staff, we have technical associates including professors, specialist and engineers who works for the Vietnam Academy of Science and Technology, Hanoi University of Pharmacy, Institute of Chemistry, Hanoi University of Technology. They have been effectively supporting our patent division to provide our clients with precise Vietnamese specification versions and technical advices.

Our Trademark Division:

With the experiences in more than 18 years practicing in the intellectual property field, our attorneys and associates will provide you with professional advices before filing trademark/design applications. Our mottoes are accuracy, timely and cost effective.

A close relationship with the National Office of Intellectual Property, which we understand as an important component for patent/design/trademark prosecution success has been established since the beginning of our practice.

We also maintain and strengthen our professional relation with the state enforcement authorities including judicial systems (the Courts and prosecutors), Market Management Bureau, Economic Police, etc.

Luu Vinh

Luu Vinh is our exclusively recommended Acquisition Finance expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Luu directly using the contact details listed above.

Luu spent several years working for Indochine Counsel – a local law firm, headquartered in Ho Chi Minh City, in a role of Managing Associate / Head of Hanoi Office, where he advised on foreign investment, corporate & commercial matters, mergers & acquisitions, corporate restructurings, property & construction and dispute resolutions.

Before taking on the role of Managing Associate / Head of Hanoi Office of Indochine Counsel, Vinh served for several years as the Manager and Assistant to the General Director of InvestConsult Group, a major local law firm based in Hanoi. There he managed, supervised and coordinated the legal team. In that role, he provided legal advice in the areas of international trade, employment and labour, incorporation and foreign direct investment. He also developed and refined the strategic direction and implementation of legal consultancy services.

Key clients of Vinh’s include Lan Chi Group of Companies, PiCO, Green City, NEM Fashion Group, Toto Vietnam, Mirai Industry, FCC Vietnam, Fedeal-Mogul Vietnam, Seiko Ideas, GF Machining Solution, Soft Chemical Corporation, Georg Fischer AG, Jebsen & Jessen Group of Companies in Vietnam, System Cleaners Asia Co., Ltd, Cisco Systems Management B.V, DKT International, SPG Investment, SPG Trading, Vietnam Alliance Minerals, Hai Dang Minerals, Eumin S&D Vietnam, LG Electronics, Sumitomo Group, Toyota Vietnam, Vietnam Airlines, Song Da Corporation, McKinsey & Company, Techcombank, Starglobe Ltd (Switzerland), Toyota Tshusho, CJ Vietnam.

Hung Le

Hung Le is our exclusively recommended Construction Law expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Hung directly using the contact details listed above.

Recognising the importance of a boutique law firm dedicating to serving legal needs in real estate, construction and operation of a property project, Hung Le took the bold and entrepreneurial step of leaving both Hoa Binh Construction and Real Estate Corporation, a leading construction contractor in Vietnam, and a Vietnamese based law firm to set up CNC Counsel in 2013.

Being recognized as an experienced lawyer in the field of construction and dispute resolution, Hung regularly advises project developers, contractors and various consultant in investment, construction, and real estate in Vietnam. Hung’s clients include Hoa Binh Group, How Yu, Lecade, Dat Xanh, AltusGroup, Artelia Group, Kurihara, COFICO, Pado, Sinh Nam.

Gaining an extensive experience and good relationships with those clients, Hung can give exceptionally valuable legal advice in a wide range of services, ranging from contract, construction, real estate to dispute resolution.

Ranked as one of a few lawyers in Vietnam who can understand the deep insight of real estate and construction industries, Hung regular conducts in-depth 1999 FIDIC contract management training courses with the aim at to help Vietnamese practitioners to have a further closer to international conditions of contracts in construction and real estate sectors.

Vinh Le

Vinh Le is our exclusively recommended Accounting Services expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Vinh directly using the contact details listed above.

Before joining Dezan Shira & Associates Vinh accumulated a wealth of expertise over decades of experience in the tax, accounting, and audit fields. Vinh spent over a decade at Russin & Vecchi, a law firm focusing on foreign investment in Vietnam and served in senior and managerial accounting positions at Fortune 500 firms like Nestle.

Vinh is an active member of both the Ho Chi Minh Accounting Association (HAA) and the Finance and Accounting Club (FAC), local professional bodies, through which she stays abreast of regulatory trends in the finance and accounting fields.

Vinh Le has degrees in Accounting and Finance and Foreign Trade, and is a Certified Professional Accountant in Vietnam.

Firm Overview:

Dezan Shira & Associates is a pan-Asia, specialist practice that provides multi-disciplinary foreign direct investment advisory and operational services to international businesses seeking to enter and expand their businesses in Asia. Our services in Vietnam and elsewhere in Asia, include pre-investment and entry strategy advisory, comparisons of investment destinations, due diligence, corporate establishment, tax planning, accounting & reporting, treasury administration, financial review, internal audit & compliance, human resource administration & payroll, and ERP & financial system review.

Founded in Hong Kong in 1992, Dezan Shira & Associates today, has more than 300 professionals based in its 18 subsidiary offices in China, India, Vietnam, Hong Kong, Singapore and Indonesia, and its liaison offices in Italy, Germany and the United States. The firm also has established alliance partnerships, with offices in Malaysia, the Philippines and Thailand. We are your partner for growth in Asia.

Our mission is to guide foreign companies through Asia’s complex regulatory environment and assist them with all aspects of establishing, maintaining and growing their operations in the region. In essence, we walk clients through the entire process of Asian market familiarisation, business planning, and corporate establishment, and provide post-establishment administration, financial, HR, payroll, and IT services.

Mark Oakley

Mark Oakley is our exclusively recommended Corporate Law expert in Vietnam on the Advisory Excellence website. If you need assistance in this area, please contact Mark directly using the contact details listed above.

Mark is the managing partner of ACS Legal and focuses on foreign direct investment into Southeast Asia. Before establishing ACS Legal, he worked at large international law firms in London, Singapore, the Middle East and Vietnam.

Mark has advised multinational clients on various international transactions involving private equity, structured finance, mergers and acquisitions, joint ventures, acquisition finance and commercial agreements.

Mark Oakley has been advising clients from different industries such fitness and wellness, technology, entertainment and F&B, hotel development, retailers and manufacturing companies.

Firm Overview:

ACSV Legal is a HCMC, Vietnam-based law firm with a team of lawyers who are qualified in Vietnam, the UK, the US and Malaysia in civil and common law jurisdictions.

Our Clients are comprised of both SEA businesses experiencing rapid growth in Vietnam and foreign firms seeking to acquire or otherwise form businesses in Vietnam. They come from many sectors and industries including manufacturing, F&B, hospitality and leisure, education, pharma, health, beauty & fitness, information technology, apparel and fashion, retail, and PR.

ACSV Legal’s commitment to service excellence extends to the way in which we approach fees. We bring significant local and international experience, multi-jurisdictional legal knowledge and a sensitivity to clients’ expectations, yet remain price sensitive.

The languages spoken at ACSV Legal include Vietnamese, English, German, Japanese, Italian, Dutch, French and Malay.