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

March 3, 2017

What Is a Patent Worth?

Bangkok Post, Corporate Counsellor Column

When deciding how much to invest in their intellectual property rights, product manufacturers often ask, “What is a patent worth?” This is a reasonable question, given the costs required to obtain patent protection. But manufacturers need to understand that unless a product with high value and risk of being imitated is patent-protected, the product owner could lose potential profits by not possessing exclusive rights to the product. Investing in a patent will help protect you and your investors, and enable you to produce and sell your product, while preventing others from doing the same.

A patent is a limited monopoly right granted under the authority of the government, which will issue a patent for an invention that is a new, useful, and unobvious product or process, or an improvement on such an existing product or process. A patent lasts for 20 years from the date of application filing. The rights to a patent are granted in exchange for a complete and enabling disclosure or description of the best mode of implementing the invention.

Once you are granted a patent, it is the government’s obligation to prevent others from making, using, selling, or importing your invention. During this 20-year period, once the patent is approved and remains validly registered, you can go to court and obtain damages against any infringers of your patent, and in most circumstances, apply for an injunction to prevent ongoing infringement of your patent during the term of validity.

Valuing Your Patent

So what does this mean for the value of a patent? You may look at the profits that you currently earn on the sales of your product and ask yourself, “Would I lose my profits if I do not have a patent?” This lets you quantify, in monetary terms, what the patent may be worth. By reevaluating this amount each year for the remaining life of the patent, you will be able to generally determine the value of your patent.

A patent is necessary and has a value only when a product or process covered by the patent currently exists or will exist in the market. This concept also extends to improvements or upgrades to your invention, because if you do not obtain a patent for these items, then your competitor might. If they possess such a patent and you do not, then you may be unable to sell your improved or upgraded product or process in the future.

Licensing

When you own a patent, you can make the products protected by the patent and prevent others from doing so. But beyond this, you can also license or sell your patent, which further qualifies it as a valuable asset. For example, if someone were to make a claim for infringement against you, you could offer to cross-license your patent, or you could counterclaim or countersue based on your patent. In this instance, having multiple patents or building a patent portfolio can be a very profitable business model.

Valuation Methods

When you are looking to license or sell your patent, you will need to have a starting point for negotiations by determining the value of the patent. In general, you can assess the patent’s value in a couple of different ways—one of which is the “calculated value.” There are several different methodologies that you can employ to derive a calculated value, such as the cost method, market method, and income method, which are based on discounted cash flow. Then there are more sophisticated methodologies, such as the probability adjusted income method, Monte Carlo analysis, and binomial lattices and real options method. There is no shortage of methodologies that can be applied. These models allow a patent owner to draw an estimate of the value of the patent.

Another, less formal, method involves the “story” value. There can be either a good story behind a patented invention or an unattractive story. In discussions between a patent owner and any potential buyers, the story—or reasons behind why the owner is selling the patent—will have an effect on the ultimate value received for the patent from the buyer.

There is also the element of competition among potential buyers who wish to obtain your patent to consider. If several well-funded companies are competing to obtain your patent, or even if there is only one company that is highly motivated in acquiring it, then your patent obviously commands a high valuation.

As the patent owner, you may be a brilliant innovator, who has spent the past 20 years working very hard on an invention, which grew in value over time. But if you are a poor negotiator, you could destroy much of the value of your invention when you license your patent. Thus, savvy negotiating skills are key to maximize the desired amount of value you want from your patent.

RELATED INSIGHTS​ 

November 13, 2025
Tilleke & Gibbins has contributed the Thailand chapter to Franchise 2026, part of the International Comparative Legal Guides (ICLG) series published by Global Legal Group. This annual guide offers comparative analysis of franchise laws and regulations across jurisdictions worldwide, providing practical insights for businesses and legal practitioners operating in the global franchise sector. Each country chapter in the 12th edition follows a Q&A format covering key aspects of franchise law and operations, including: Relevant legislation and rules governing franchise transactions Business organization options for franchised operations Competition law considerations Protection of intellectual property and brands Liability issues and risk mitigation Governing law and dispute resolution Real estate matters Online trading regulations Termination requirements Joint employer risks and vicarious liability Currency controls and taxation Commercial agency considerations Good faith obligations and fair dealing requirements Ongoing relationship management Franchise renewal processes Franchise migration procedures Sustainability commitments Electronic signatures and document retention Current developments in the franchise sector The Thailand chapter, authored by Alan Adcock and Kasama Sriwatanakul, provides an in-depth overview of the legal landscape for franchising and franchising-related activities in Thailand. The complete Thailand chapter is available as a PDF below. The Thailand chapter—and the full Franchise 2026 guide—are also freely available on the ICLG website.
October 26, 2025
AI-generated songs are now making waves in Vietnam on platforms like TikTok, with tracks such as “Say mot doi vi em” quickly gaining popularity and sparking widespread attention. This phenomenon raises a host of legal and ethical questions: Who is the author of these songs? Can they be protected by copyright? Who is responsible if there is an infringement? These questions are becoming increasingly urgent as AI music becomes more mainstream in Vietnam. Copyright Protection for AI-Generated Music in Vietnam Under current Vietnamese law, copyright protection is reserved for works that bear the mark of human creativity. The 2022 amendments to Vietnam’s Intellectual Property Law reaffirm that only works created by humans are eligible for copyright. In practice, if a human meaningfully contributes to the creative process—by providing prompts, making selections, editing, or arranging—their contribution may be protected. However, if a song is generated entirely by AI without significant human input, it is unlikely to qualify for copyright protection. When an AI-generated song does not qualify for copyright protection, the question arises as to whether the person who writes the prompts, edits, or compiles the work can still be considered the owner of an asset under the Vietnamese Civil Code. According to Article 105 of the Civil Code 2015, assets include objects, money, valuable papers, and property rights. While AI-generated music that is not protected by copyright is not considered money or valuable papers, it may be regarded as an object (in the form of a digital file or recording) or as a property right if it can be possessed, used, transferred, or exploited for value. Use of AI-Generated Works Without Copyright Protection If a song is not protected by copyright, does that mean anyone can use it freely? Not necessarily. The absence of copyright does not mean the
October 24, 2025
Thailand currently lacks a specific franchise act. Consequently, the legality of any franchise agreement is determined by its compliance with various existing laws, such as the Civil and Commercial Code, the Trademark Act B.E. 2534 (1991) (as amended), and the Unfair Contract Terms Act B.E. 2530 (1997). Thailand is a freedom-to-contract jurisdiction. This allows for a high degree of flexibility and autonomy in contractual arrangements, provided that the terms do not violate any laws or public policy and do not fall under the scope of unfair contract terms. Given this, the requirement for fairness in franchise agreement terms often leads to uncertainty, but decisions from the Trade Competition Commission of Thailand (TCCT) can provide guidance on whether specific contentious terms are in fact fair.  One issue worth examining in this light is the inclusion of terms on nonrefundable franchise fees and strict purchasing conditions. Franchise Fee: Unfair to Refuse Refund? Nonrefundable franchise fees represent a significant upfront investment for franchisees, often becoming a point of contention if the franchise relationship deteriorates or the franchisor ceases operations. Their fairness and enforceability are frequently scrutinized by regulatory bodies like the TCCT, highlighting the critical balance between contractual freedom and franchisee protection. Faced with one such case, the TCCT considered whether it was unfair for the franchisor to refuse to refund the franchise fee after the franchisor ceased operations.  The franchisee had entered into a service agreement on August 2, 2021, and begun operating on October 9, 2021. However, by November 21, 2023, the franchisee was notified that the system would be shut down for maintenance, and by December 26, 2023, the franchisor announced the cessation of operations due to financial losses. The franchisee then requested a refund of the franchise fee. Unfortunately for the franchisee, the TCCT found that the franchisor’s
October 23, 2025
Myanmar’s customs authorities have introduced new procedures allowing copyright holders to protect their intellectual property from infringing goods at the border. The Ministry of Finance and Revenue issued Notification No. 107/2025 on September 11, 2025, establishing rules and requirements for customs recordation under the Copyright Law of 2019. The notification includes eight official forms for copyright-related customs matters—three for applicants and five for the Customs Department. This was followed by Customs Department Announcement No. 1/2025, dated September 29, 2025, which details the security required for suspended goods. Customs recordation provides a proactive mechanism for rights holders to prevent importation of pirated works. By registering their works with the Customs Department, rights holders gain access to enhanced border enforcement measures, empowering customs officials to identify and intercept pirated goods before they enter the market. While copyright protection in Myanmar arises automatically under the Copyright Law of 2019, a registration certificate for copyright or related rights is required to apply for customs recordation. Customs Recordation Registered copyright and related rights holders can apply directly or through authorized legal representatives for customs recordation to prevent cross-border trade in pirated works. Applications must use the prescribed form and include all supporting documentary evidence specified in the form. The Customs Department will notify applicants within 15 days of receiving their application. Each recordation remains valid for two years from the date of acceptance and may be renewed for successive two-year periods by submitting a renewal application at least 30 days before expiration. Rights holders whose works are recorded must notify the Customs Department within five days of any amendment or withdrawal of information at the Intellectual Property Department. Suspension Orders Registered copyright and related rights holders can request a suspension order to prevent release of pirated goods into free circulation, regardless of whether they