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

December 16, 2011

How to Prove Damages in Trade Secret Infringement Disputes

Bangkok Post, Corporate Counsellor Column

Calculating damages is difficult in any type of litigation, but attempting to assess the damages in cases involving trade secrets can be far more complex than in cases relating to other forms of intellectual property rights.

For plaintiffs, recovery of damages is a key factor in trade secrets litigation. Like other forms of intellectual property litigation, the plaintiff’s lost profits form a central component of any damages award. But unlike trademark or patent litigation, Thailand’s Trade Secrets Act empowers the court to move beyond lost profits and award other types of damages as well.

Causes of Action

Protection for trade secrets is usually provided in the form of non-disclosure of trade information, which must be kept confidential by the owner through the use of appropriate means. Trade secrets are only valuable as long as they remain a secret.

Any act of disclosure, deprivation, or usage of a trade secret without the consent of the owner in a manner contrary to fair commercial practice constitutes an infringement of trade secret rights, provided that the infringer knows or should have known that his or her action is contrary to fair commercial practice.

The causes of action which are available in trade secret cases include: (1) breach of an employment agreement by an employee; (2) misappropriation of trade secrets and confidential information; and (3) tortious interference with business relations with the ex-employee and/or between the former employer and its customers or suppliers.

Calculating Lost Profits

Where a cause of action exists, the plaintiff will likely seek damages that are sufficient to compensate for the economic and financial loss caused by the defendant’s infringement.

In trade secrets litigation cases where both the plaintiff and the defendant have already developed and sold the products, a historical baseline for profitability can be been established. If such actual damages can be proved, then the lost profits may be recoverable.

Lost profits are typically calculated as net profits (i.e. gross revenue minus overheads and expenses). Most courts prefer to use the plaintiff’s lost profits, or the defendant’s profit gains, as the preferred measure for assessing damages.

However, if neither the plaintiff nor the defendant has any sales history on which to base such a calculation, most courts would find the measure of lost profits to be too speculative for the purpose of recovering damages.

The court calculates the lost profits which are attributable to the plaintiff through a range of methods, which vary from relatively straightforward to extremely complex. The court will consider the following factors:

  • The nature of the misappropriated trade secret
  • Research and development costs
  • Competition between the businesses of the plaintiff and the defendant
  • The size of the markets and other factors which are difficult to quantify

Therefore, during the trial, the plaintiff should show the court that the plaintiff has invested significantly, over the course of many years, in technology, time, money, intellectual property, security measures, and so forth, in relation to the trade secrets. The plaintiff may present evidence to prove these factors to the court, so that the court can use the information to determine the amount of damages to award.

The Thai Trade Secrets Act does not specify the amount of expenses that can be claimed in relation to the enforcement of rights, in the same manner as the Thai Patent Act. A plaintiff can claim its lawyers’ fees and travel expenses in the lost-profit calculations, but it is important to bear in mind that there is no precedent judgment in relation to such claims.

Additional Damages

Beyond just recovery of lost profits, the Thai Trade Secrets Act empowers the court to apply several additional measures for calculating damages:

  1. In addition to the damages for the actual damage suffered, the court may include in the damages for the plaintiff profits accrued from, or connected with, the infringement by the infringer.
  2. If the court is unable to measure the damages under (1), it may order that an amount of damages be paid to the controller of the trade secrets.
  3. Where there is clear evidence that the infringement of trade secrets has been conducted wilfully or maliciously, the court is empowered to order the infringer to pay punitive damages, in addition to the amount of damages granted under (1) or (2). However, the punitive damages are limited to no more than double the damages payable under (1) or (2).

These additional forms of damages provide new avenues for trade secret owners to seek redress when their valuable information has been misappropriated. Thai legal practitioners will be closely monitoring the practical application of these damages awards as more trade secrets disputes are heard by Thailand’s Intellectual Property and International Trade Court.

RELATED INSIGHTS​ 

April 21, 2026
Vietnam continues to refine its intellectual property framework to align with the 2025 amendments to the Law on Intellectual Property (IP Law). On March 31, 2026, the government issued Decree 100/2026/ND-CP (Decree 100), which substantially amends Decree 65/2023/ND-CP detailing the implementation of the IP Law (Decree 65). On the same day, the Ministry of Science and Technology released Circular 10/2026/TT-BKHCN (Circular 10), providing detailed procedural guidance and new forms. Both instruments took effect on April 1, 2026, along with the amended IP Law. While the updates touch on every IP right, trademark owners and brand strategists will find several practical and forward-looking changes that directly affect filing strategy, examination timelines, portfolio management, and enforcement readiness. 1. Fast-Track Substantive Examination for Eligible Applications One of the most business-friendly innovations is the new fast-track substantive examination pathway for applications meeting specified eligibility criteria. Successful fast-track applications enjoy a shortened substantive examination period of three months. This offers a significant competitive edge for tech-driven or regulated-sector brands. If the mark is identical or similar to a mark in another person’s trademark application with an earlier filing date in the case of a priority application that has not yet been processed, the fast-track process will return to the ordinary process. However, the law does not touch on cases where marks under fast-track examination face office action due to other reasons (i.e. lack of distinctiveness, confusingly similar to others’ copyright, trade name, industrial design, etc.) 2. AI-Generated Trademarks Receive Clear Protection Pathway Decree 100 explicitly addresses the use of artificial intelligence (AI) in IP creation, amending Article 10a of Decree 65 to confirm that trademarks created with AI systems are fully protectable, provided they meet the standard requirements of registration. Trademarks face no additional “human authorship” hurdle (unlike patents or industrial designs). Brand owners
April 20, 2026
Myanmar’s industrial design registration regime has been steadily gaining momentum since the country officially began accepting applications under the Industrial Design Law of 2019. The Industrial Design Division of Myanmar’s Intellectual Property Department (IPD) has actively advanced examination and registration procedures, and as of March 2026, approximately 300 industrial design applications have been published in the IPD’s publicly accessible database—a meaningful milestone in the development of Myanmar’s emerging intellectual property framework. This figure reflects only published applications; additional filings remain pending and will be published after the conclusion of ongoing examination. Filing Requirements in Practice Compliance with a defined set of mandatory requirements is the foundation for filing a valid design application. These mandatory particulars must be provided at the time of filing in order to establish a filing date. These include the applicant’s and creator’s identifying details, a notarized appointment of representative form, the Locarno Classification of the associated product, and a set of graphic representations of the design across multiple standard views. Applicants must also provide a written description of the design and, where applicable, information relating to any priority claim or request for deferred publication. Filing fees are payable at the time of submission. Beyond these core requirements, applicants typically need to provide supplementary documentation, either at the time of filing or in response to a formality examination. This may include evidence of the applicant’s legal entitlement to the design—particularly where the applicant and creator are different parties—as well as supporting corporate and authorization documents. Where priority rights are claimed, the relevant documents must generally be submitted within three months of the Myanmar filing date, with certified English translations required for any non-English priority applications. The supplementary requirements may vary depending on the nature of the application and the examiner’s requests during the formality examination process.
April 3, 2026
On March 16, 2026, Vietnam’s Ministry of Public Security released a draft version of a new Decree on the Prevention and Combating of Cybercrime and High-Tech Crime to replace the currently effective Decree 25/2014/ND-CP. In the draft, the ministry has proposed a comprehensive regulatory framework aimed at addressing violations occurring within the cybersecurity domain, including measures related to intellectual property. Acts of Online IP Infringement Article 9 of the draft decree notably introduces specific provisions addressing online intellectual property infringement, with detailed lists of acts considered to constitute infringement in the online environment. Copyright and related rights infringement includes: Uploading or sharing works, performances, sound recordings, video recordings, broadcasts, computer programs, software, research, documents, theses, or other intellectual creations on digital platforms without the consent of the rights holder. Unauthorized livestreaming of copyrighted television programs, sporting events, or artistic performances. Uploading, sharing, storing, transmitting, or providing links to infringing works or digital content via websites, social networks, applications, or digital platforms. Providing or using software, tools, devices, or access codes to circumvent technological protection measures or evade lawful control mechanisms implemented by rights holders. Using artificial intelligence (AI) tools to replicate the ideas or structure of another person’s work without significant new creativity or without proper attribution, thereby causing damage to the original author. Industrial property infringement includes: Manufacturing, trading, advertising, or distributing counterfeit goods bearing counterfeit trademarks, geographical indications, or industrial designs, as well as goods infringing industrial property rights through online platforms. Unauthorized registration, appropriation, or use of domain names, account names, or digital identifiers that create confusion regarding the rights holder or the origin of goods or services. Producing, using, or offering for sale products containing all or part of a patented invention via online platforms. Advertising or introducing products with technical features or characteristics identical
March 31, 2026
Vietnam’s most recent amendment of the Law on Intellectual Property (amended IP Law), passed by the National Assembly on December 10, 2025, and effective from April 1, 2026, represents one of the most significant updates to the IP Law in recent years. This amendment modernizes the IP framework, moving a step closer to international standards, while addressing the realities of Vietnam’s booming digital economy, e-commerce growth, and increasing foreign investment, which is crucial for Vietnam’s objective of complete economic transformation. For trademark practitioners, brand owners, and businesses, the changes are largely positive, as they promise faster processes, stronger enforcement tools—especially for online actions—and better commercialization options. However, they also introduce stricter requirements and a need for proactive preparation. Below are some of the most noteworthy changes in the amended IP Law related to trademarks. Significantly Shortened Timelines and Introduction of Fast-Track Examination The statutory timelines under the amended IP Law have been notably reduced: Substantive examination for trademarks is shortened from 9 months to 5 months (from the publication date). The publication period is shortened from 2 months to 1 month. A new fast-track mechanism allows substantive examination in as little as 3 months for qualifying applications (e.g., marks in actual use, facing infringement threats, or meeting government-specified criteria; details to be clarified in implementing regulations). The opposition period is shortened from 5 months to 3 months from publication. This is arguably the most welcome change. Vietnam’s IP Office has long faced criticism for lengthy backlogs, often stretching the trademark registration process to 18–24 months or more. The new timelines bring Vietnam closer to efficient systems. The fast-track option is particularly smart for high-value or urgent cases such as counterfeit threats on e-commerce platforms. However, careful preparation is mandatory for flawless applications from the start to maximize fast-track eligibility.