In general, the recipe itself usually cannot get a full "invention patent" - most recipes fail either the novelty requirement (if it's a traditional recipe already widely known) or the inventive-step requirement (if it's only a minor variation on an existing one). But in practice, the recipe/formula itself can usually get protected through a "petty patent", since a petty patent drops the inventive-step requirement, needing only novelty and industrial applicability - based on our firm's own filing experience, petty patent applications for food recipes and cosmetic/cream formulas get registered in the large majority of cases. A food business also has trade secret protection (the recipe, with no disclosure at all), trademark registration (brand name/logo), and design patent (packaging shape) as tools covering other dimensions of the business.
The Short Answer: Full Patents Usually Fail, But Petty Patents Work
The most common question is "can I patent my recipe in Thailand?" The answer depends on which kind of patent. For a full invention patent, the short answer is generally no - not because the Patent Act B.E. 2522 specifically bans recipes or food products (Section 9 lists five categories that cannot be patented: naturally occurring microorganisms and their components, animals, plants, or extracts from animals or plants; scientific or mathematical rules or theories; computer programs; methods of diagnosis, treatment, or cure of human and animal diseases; and inventions contrary to public order, morality, health, or welfare - recipes do not appear on this list). It's because most recipes fail the three-part qualification test in Section 5: new (Section 6), involving an inventive step (Section 7), and capable of industrial application (Section 8). But Thai law also has the petty patent, a separate patent type that drops the inventive-step requirement, and in practice it's the main route food and cosmetic businesses actually use to protect the recipe itself - see the "Petty Patent" section below.
Why Recipes Usually Fail a Full Invention Patent
This section is about the full invention patent (which needs novelty, inventive step, and industrial applicability) only - the petty patent has a lighter bar, covered separately below. Recipes can trip up on either requirement of a full patent, depending on the recipe:
Failing novelty (Section 6): A traditional or widely-used recipe - a classic Thai dish, for instance - is already considered publicly disclosed (prior art). It isn't "new" under the law, even if no one has ever filed a patent on that exact recipe before.
Failing the inventive step (Section 7): Even a recipe that's genuinely never existed before (clearing the novelty bar) still has to meet the requirement that an invention "is not obvious to a person ordinarily skilled in the art." A recipe that's just existing ingredients combined in a slightly different ratio or sequence usually isn't "unexpected" to a chef or food technologist skilled in that field - so it fails here even after clearing novelty.
On top of that, patent applications require full disclosure of the recipe in the filed documents - a mandatory feature of the patent system - meaning competitors can read the recipe the moment the application is published. That's why many food businesses choose not to patent even when they technically could qualify for both requirements.
What Kind of Recipe Has a Shot at a Full Invention Patent
Recipes aren't automatically unpatentable as full invention patents - one that clears both novelty and the inventive step is usually one that departs from existing recipes in a real way, not a minor tweak. Examples: substituting a main ingredient that's never been used in that category of dish before (using corn instead of long beans in a particular snack recipe, say), changing ratios enough to produce a meaningfully different result, or changing the process or conditions - temperature, fermentation time - enough to alter the product's properties in a way a skilled practitioner wouldn't expect. Even if a recipe like that clears both requirements, it still has to be weighed against the public-disclosure trade-off above - qualifying for a patent doesn't automatically mean filing for one is the right call. For a typical recipe that doesn't rise to this level, the petty patent below is usually the more realistic option.
Petty Patent: The Route That Actually Works for the Recipe Itself
Under Section 65 bis, a petty patent only requires two qualifications: novelty (using the same definition as Section 6, the full-patent standard) and industrial applicability. It drops the inventive-step test entirely. A recipe that's only a minor variation on an existing one - the kind that fails a full patent because a skilled practitioner would find it easy to predict - can still clear a petty patent's novelty bar, as long as no identical recipe has ever been publicly disclosed before.
On top of the lighter qualification bar, the Department of Intellectual Property's examination process for a petty patent application is a preliminary documentary and formal check before granting it - not the deep substantive prior-art examination a full invention patent goes through (an interested party can request examination and file an opposition, but only within one year of publication). With a lighter bar and a lighter process, based on our firm's own filing experience, petty patent applications for food recipes and cosmetic/cream formulas get registered in the large majority of cases in practice.
A petty patent lasts 6 years from the filing date, renewable twice for 2 years each (10 years total), and like a full patent, it still requires disclosing the recipe publicly once the application is published - the same disclosure trade-off discussed above still applies. If you don't want to disclose the recipe at all, trade secret protection below is the better fit. See the Petty Patent Knowledge Center for details.
What Actually Protects a Food Business's IP
Beyond the petty patent, which can protect the recipe itself directly, a food business has several other pieces of intellectual property that are protectable - each one covers a different dimension of the business:
Trade Secret - The Recipe Itself, With No Disclosure
For the exact recipe or ingredient formula, another option is protecting it as a trade secret under the Trade Secrets Act B.E. 2545. The advantage is that you never have to disclose the recipe publicly at all, unlike a petty patent or full patent, and there's no fixed protection term - it lasts as long as it remains secret. But there's an important limitation to understand, covered in the next section, because trade secret protection is not automatic - a common misconception.
Trademark - Brand Name and Logo
The brand name, logo, or symbol that distinguishes your product from competitors can be registered as a trademark under the Trademark Act B.E. 2534. This is usually the most valuable long-term asset for a food brand, since customers recognize the brand even as the recipe itself evolves. See the Trademark Knowledge Center for details.
Design Patent - Packaging Shape
A new and distinctive packaging shape or pattern can be registered as a design patent under the Patent Act B.E. 2522, Chapter III (Section 56). This protects the external appearance - not the recipe or ingredients inside - and lasts 10 years from the filing date. See the Design Patent Knowledge Center for details.
Trade Secret Protection Is Not Automatic
A common misunderstanding is thinking that simply not telling anyone is enough. Under Section 3 of the Trade Secrets Act B.E. 2545, information only qualifies as a legally-protected "trade secret" if it meets all three conditions: (1) it is not yet publicly known or accessible to persons normally connected with that kind of information; (2) it has commercial value because of its secrecy; and (3) the owner has taken appropriate measures to maintain that secrecy. That third condition is the part most often overlooked - it means the recipe owner needs real access controls in place, such as non-disclosure agreements (NDAs) with staff who have access to the recipe, limiting how many people know the full formula, or splitting the production process so no single person knows every part of it. Without those measures, a court may find the information never qualified as a trade secret in the first place, even if the owner never published it.
Section 7 of the same Act also sets out acts that are not considered infringement of a trade secret: independently discovering the information through one's own expertise, and reverse engineering - analyzing a product that's openly sold to figure out how it's made - provided the product was obtained in good faith. That means if a competitor buys your product and works out the recipe through their own analysis, that is not a trade secret violation under the law. Trade secret protection is real, but it isn't the same kind of absolute exclusivity a patent grants - it's conditional protection that has to be actively managed, not something you get just by keeping quiet.
A Worked Example
The following is a hypothetical example for illustration only, not an actual client case.
Suppose a bakery develops a proprietary sauce that gives its product a distinctive flavor. The owner could plan IP protection as follows: register a trademark for the shop's name and logo, so customers recognize the brand over the long term. If the sauce is packaged in a distinctively shaped bottle, a design patent for that bottle shape could be worth considering. As for the sauce recipe itself, if the ratio or ingredient combination has never been publicly disclosed in exactly that form before, it has a real shot at a petty patent even though it doesn't rise to the "unexpected" level a full invention patent requires - though that means trading away recipe secrecy through public disclosure. If the owner would rather not disclose the recipe at all, the better fit is protecting it as a trade secret: putting non-disclosure agreements in place with kitchen staff who have access to it, and making sure no single employee knows the complete formula.
Frequently Asked Questions
Can you patent a recipe in Thailand?
The law does not list recipes among the things that cannot be patented (Section 9). In practice, though, a full invention patent for most recipes fails one of two requirements: novelty (Section 6), if the recipe is a traditional or widely-used one, or the inventive-step requirement (Section 7), if it's only a minor variation on an existing recipe that a person skilled in the field would find easy to predict. A petty patent, which drops the inventive-step requirement, is a realistic and much easier path for the recipe itself.
Does trade secret protection cover a recipe automatically?
No. Under Section 3 of the Trade Secrets Act B.E. 2545, information only qualifies as a trade secret if the owner has taken appropriate measures to maintain its secrecy. Simply not publishing the recipe is not enough - you need real access controls, such as non-disclosure agreements with staff. Section 7 also states that independently discovering the same formula, or reverse-engineering it from a product obtained in good faith, is not an infringement.
Can a petty patent actually protect a recipe itself?
Yes - and in practice it's the path most food and cosmetic/cream businesses actually use to protect the recipe itself. A petty patent under Section 65 bis only requires novelty and industrial applicability, dropping the inventive-step requirement, and the Department of Intellectual Property only does a preliminary documentary check before granting one, not the deep substantive examination a full patent gets. Based on our firm's own filing experience, most petty patent applications of this kind get registered. It still requires disclosing the recipe publicly, the same as a patent.
