Name: Nguyen Duc Long
Country: Vietnam
Expertise: Intellectual Property Law

Telephone: +84-24-37913084
Fax: +84-24-37913085

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Professional Biography:

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.