You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

June 2, 2021

Employee-Inventor Remuneration Requirements in Thailand and Vietnam

In view of today’s knowledge-based economies and accelerating technological developments, intellectual property (“IP”) is increasingly often the most valuable asset of a company. Accordingly, most savvy companies pay particular attention to their IP assets and ensure that their rights are properly protected under local laws. Among commonly available IP protections, patent protection most often provides the strongest protection for a company’s innovations. In fact, patent protection may be viewed as an important tool for achieving specific business goals, especially for tech-based companies.

However, sometimes questions arise over the ownership of patents for inventions created by employees and whether the company needs to share the profits from an invention with the employee-inventor. In addition, due to the COVID-19 pandemic, many companies began to allow employees to work remotely, while some companies found it necessary to lay off some if their workforce. From the company’s perspective, it is important not only to motivate and support employees to be innovative, whether they are working on the premises or remotely, but to also ensure the company’s proper ownership of the employee’s invention and provide appropriate remuneration for legal compliance purposes. Furthermore, in view of remote working and employee layoffs, companies need to be remain vigilant in securing legal assignment and confidentiality obligations from employees with regard to their inventions.

In this article, we examine how the relevant laws and regulations in Thailand and Vietnam treat an employee’s invention and remuneration, and analyze what prudent employers should do to be mindful of the local laws with regard to patent ownership and employee remuneration.

Thailand

Thai patent law clearly states that the right to apply for a patent for an invention made under an employment contract or a contract for performing certain work shall belong to the employer or the person who commissioned the work, unless otherwise provided in the contract. This means that the patent rights to an invention created during the course of employment belong to the company, unless the company and the employee-inventor have agreed otherwise in a contract. Thus, companies operating in Thailand should make sure that this point is clearly communicated to all employees to prevent any misunderstanding, as employees sometimes think that they own the invention they created.

Even so, companies need to be aware that Thai patent law also stipulates that, in order to promote innovation and invention and to give a fair share to employees who create patentable inventions, employee-inventors must be given the right to remuneration other than their regular salary if the employer benefits from their invention. This right to extra remuneration applies to inventions protected by patents, petty patents, and design patents, and notably cannot be prevented by any contractual provision. Consequently, even though a company owns an invention’s patent rights, the employee-inventor is entitled to receive extra remuneration, provided that the company benefits from the patented invention created by the employee.

The law does not expressly specify the amount or value of “extra remuneration” that the employee-inventor is entitled to receive. When considering whether remuneration should be paid, and the amount thereof, the following factors should be taken into account:

  • The responsibilities of the employee;
  • The industriousness and experience that the employee and other persons have used in the creation of the invention or in the design of a particular product, including any advice or assistance given by other individuals who are not considered the inventors;
  • Any assistance given by the employer to facilitate the invention or design of a product, for example, the provision of finance, advice, recommendations, facilities and the preparation or procurement of factors or services for the testing, development or making of the invention or design to make it usable;
  • The benefit that the employer has received or will receive from permitting the use of the invention/design (including benefits derived from the disposal of the patent);
  • The number of employees who participated in the creation of the invention or design of the product.

In light of the foregoing legal obligations under Thai patent law, companies operating in Thailand may consider putting a well-designed reward system in place, which not only serves legal compliance purposes, but also creates appropriate incentives for employees to develop innovative ideas and inventions that would benefit the company’s business growth and development.

Additionally, if key employees have been or will likely be working remotely going forward, or if some employees leave the company, it is always advisable for the company to obtain written assignment of their inventions and ensure ongoing confidentiality obligations from employees during their employment and after they leave the company.

Vietnam

Like most other jurisdictions, in most circumstances, inventions created by Vietnamese employees may belong to the employer. Although Vietnamese law does not provide a clear wording of the right to apply for a patent for inventions made under an employment contract, the spirit of the law regarding ownership of inventions made during the course of employment seems to be similar to Thailand’s laws. In particular, the IP Law of Vietnam (Article 86.1.b) states that organizations or individuals, who have invested funds and material facilities for authors to create an invention in the form of job assignment or hiring, have the right to register such inventions. This regulation, however, might trigger different interpretations due to its vagueness. On one hand, most practitioners are of the opinion that the language of Article 86.1.b is sufficient for employers to enjoy ownership over inventions made in the course of their employee’s normal duties, provided that an employment contract exists. On the other hand, some may argue that Article 86.1.b requires a specific assignment, which clearly indicates the specific invention(s) covered. In other words, general employment contracts may not be sufficient for the employer to automatically own inventions created by its employees. This latter understanding and interpretation can be quite cumbersome for companies. Although we support the former interpretation, as it is in line with international practice, unfortunately there have been no precedent cases in Vietnam regarding the ownership of inventions made during the course of employment at the time of writing this article. Thus, none of the interpretations have been tested in practice.

Despite the ambiguity of the regulations on the ownership of inventions, Vietnam’s laws clearly provide that authors of employee inventions are entitled to remuneration. Article 132.2(a) of the IP law reiterates this right by requiring the owner of an employee’s invention to pay remuneration to the author or authors of that invention, while Article 135 provides further guidelines on remuneration, stating that the minimum level of remuneration that the owner (employer) must to pay to an author (employee) is calculated based on:

  1. 10 percent of the profits gained by the owner from the use of the invention, industrial design, or layout design; and,
  2. 15 percent of the total amount received by the owner for each royalty payment for licensing the invention, industrial design, or layout design.

It is noteworthy that the above regulations prescribe the remuneration during the use of the invention (when registered) and when licensing the granted patents, but not when filing an application for a patent or upon the successful registration or grant of a patent.

However, unlike Thailand’s laws, it is not mandatory for employers to pay remuneration to inventor-employees, and Vietnam’s laws allow the employer’s obligation to be waived by mutual consent of the employers and the employees.

In light of the foregoing, companies operating in Vietnam should clearly indicate in their employment contracts and company rules and policies:

  • whether inventions made by a company’s employee during the course of their employment will automatically be owned by the company; and
  • the circumstances when remuneration to an employee for their invention is granted or waived.

RELATED INSIGHTS​ 

May 19, 2026
Thailand’s telecommunications regulator has introduced a range of new compliance obligations for telecom licensees aimed at preventing and suppressing technology crime. On May 15, 2026, the National Broadcasting and Telecommunications Commission (NBTC) published in the Government Gazette Notification on Measures for Prevention and Suppression of Technology Crime No. 2, which amends the original NBTC notification dated August 24, 2025. The amendment derives its authority from the Emergency Decree on Measures for Prevention and Suppression of Technology Crime B.E. 2566 (2023), as amended in 2025, and took effect on May 16, 2026. SIM Card Registration Cap for Non-Thai Nationals Persons without Thai nationality are now limited to a maximum of three SIM cards per person per service provider. Identity verification must be done primarily via passport. For those without a passport, acceptable alternatives include travel documents or certificates of identity issued by foreign governments, accompanied by additional Thai government-issued documents, as well as pink ID cards (for persons without Thai nationality) and white ID cards (for persons without registration status). Registration must be done in person at a branch or authorized dealer. Service providers must develop their identity verification systems and obtain NBTC approval before deployment. SIM Activation Deadline and SIM Box Prohibition Both Thai and non-Thai service users must activate their registered SIM within 60 days of registration. If they fail to do so, they must re-verify their identity in person before activation, confirming they are the same person who originally registered. Service providers must prohibit SIM box and gateway devices capable of supporting four or more SIMs from connecting to their mobile networks unless the device has received a license under the Radio Communications Act. Blacklist Enforcement Service providers must refuse registration of additional mobile numbers for persons listed on a technology crime-related database maintained by the Royal
May 11, 2026
Vietnam’s legal framework governing chemicals has undergone significant reform, with the Law on Chemicals No. 69/2025/QH15 (Law on Chemicals 2025) taking effect on January 1, 2026. Together with a comprehensive set of implementing instruments issued in January 2026, including three decrees (No. 24/2026/ND‑CP, No. 25/2026/ND‑CP, and No. 26/2026/ND‑CP) and two circulars (No. 01/2026/TT‑BCT and No. 02/2026/TT‑BCT), the Law on Chemicals 2025 has significantly reshaped chemical registration and management requirements. Determining What Constitutes a “New Chemical” Among the most notable changes introduced under the Law on Chemicals 2025 are the rules governing the registration and management of new chemicals, which must be registered with the authority before being placed on the Vietnam market. Although the concept of new chemical registration was first introduced under the Law on Chemicals 2007, the corresponding registration mechanism has remained largely dormant in practice. Under the Law on Chemicals 2025, a “new chemical” is defined as a substance that is not yet included in Vietnam’s National Chemical Inventory and the list of foreign chemical inventories recognized by the competent Vietnamese authority (List of Foreign Chemicals). On a literal reading, the definition in the new law may suggest that a substance qualifies as a new chemical only if it is absent from both lists. Accordingly, a chemical present in either list should be treated as an existing chemical without the registration burden. However, a different interpretation emerges from Decree 26, which specifically requires registration of “new chemicals” even where such substances already appear in the List of Foreign Chemicals. This implies that inclusion in a recognized foreign inventory does not automatically exempt a substance from new chemical registration in Vietnam. This inconsistency between the statutory definition in the Law on Chemicals 2025 and the implementing provisions of Decree 26 creates significant interpretative and compliance challenges. At
May 11, 2026
Thailand’s rise as a regional hub for luxury retail has influenced how market entry is structured and assessed across Southeast Asia. As brands consider establishing a presence in the market, regulatory and operational considerations form a key part of the overall entry assessment. Foreign Ownership Restrictions for Retailers Foreign investment in retail activities is subject to a relatively extensive regulatory framework, particularly in relation to foreign ownership and the approvals required under the Foreign Business Act B.E. 2542 (1999) (FBA). Under the FBA, a company is generally regarded as foreign if 50% or more of its shares are held by non-Thai nationals, in which case the business is required to obtain a foreign business license (FBL) issued by the director-general of the Department of Business Development, with the approval of the Foreign Business Committee. The committee will not grant an FBL unless it is convinced the proposed business demonstrates unique characteristics such as a distinctive business model, innovative processes, specialized services or products, or a clear competitive differentiation that will benefit Thailand; constitutes a highly specialized business or requires specialized technology or expertise; and will not compete with Thai business operators who engage in the same business. The committee makes its decisions on a case-by-case basis depending on the circumstances, which can make the licensing process less predictable in practice. However, there are also alternative pathways for consideration, including exemptions in specific circumstances. For example, foreign-owned businesses in Thailand with at least THB 100 million in registered capital are allowed to open five retail stores in the country. Some businesses may also be able to access preferential treatment under international agreements and treaties between Thailand and certain foreign states, subject to eligibility requirements. Structural and Business Model Challenges The determination of what constitutes a “retail store” may itself present
May 8, 2026
Thailand has liberalized its wine import regime, allowing, for the first time, multiple importers to bring in and distribute the same wine brands. On March 27, 2026, the Ministry of Finance issued the Ministerial Regulation on the Importation of Alcoholic Beverages (No. 3) 2026, which waives the requirement to appoint a sole authorized agent for alcoholic beverages to be specified in notifications from the Excise Department. The Excise Department has already issued its first such notification, expressly exempting wine and sparkling wine made from grapes from the sole agent requirement. For all other types of alcoholic beverages (e.g., beer, tequila, spirits) the sole agent requirement remains in force, and applicants for importer licenses must provide evidence of exclusive distributorship issued by the manufacturer or brand owner. The exemption may be extended to other alcoholic beverage categories through future Excise Department notifications. Implications for Competition and Tourism The reform allows multiple importers to bring in and distribute the same wine brand without routing through the brand owner’s designated exclusive importer, reducing monopolization and boosting competition. Excise Department Director-General Pornchai Thirawet noted that wine was chosen as the starting point because implementation is straightforward in this case and because domestic wine prices remain high—with increased competition expected to exert downward pressure on prices. More broadly, the reform is intended to lower market entry barriers, expand supply, and make wine more accessible to Thai consumers, while supporting Thailand’s position as a regional tourism hub. Product Quality Control and Loss of Sole Agent Accountability Under the previous framework, the designated importer bore full responsibility for the proper storage, handling, and distribution of wine and sparkling wine from importation to final sale. This arrangement helped ensure that products were maintained under appropriate conditions, including temperature control, light exposure, and humidity management, to preserve quality