
Patenting mathematics-based inventions: Navigating sufficiency and the inventive step squeeze
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Romi Korotana

The UKIPO’s decision in O/0756/25 concerning patent application GB2301883.1, “System and Method for Using Intelligent Codes in Conjunction with Non-Fungible Tokens”, outlines how inventions based on NFTs are currently being assessed for patentability in the UK.
The decision was reached without a hearing and was based solely on correspondence on file.
The application related to a method of purchasing NFTs involving scanning a code, such as a barcode, at a Point-Of-Sale (POS).
The application included three independent claims:
Claim | Type | Key Features |
Claim 1 | Method | Method for purchasing an NFT following a user request, including validating the request and transforming purchase information into a POS-scannable barcode. |
Claim 9 | System | System claim corresponding to method claim 1, configured to implement the same steps via a computer device. |
Claim 18 | Method | Method directed to a purchase request comprising both a physical object request and an NFT request, followed by activation of a redemption code associated with the NFT. |
To determine whether the claimed subject matter was excluded under section 1(2) of the UK Patents Act, the hearing officer applied the four-step test from Aerotel/Macrossan:
In Symbian, the Court made clear that the question of whether a computer-implemented invention is patentable has to be resolved by asking whether it reveals a technical contribution to the state of the art.
There did not appear to be any disagreement between the applicant and the examiner on step 1 of the Aerotel/Macrossan test, and the hearing officer accepted the examiner’s assessment of the contribution at step 2.
The applicant’s arguments focussed primarily on steps 3 and 4 of the Aerotel/Macrossan test. They did not offer a single clear statement of what the contribution was, but identified three aspects of the invention which they considered to be important:
However, the hearing officer found that none of these features were disclosed in a manner demonstrating a technical contribution. In particular:
The hearing officer concluded that, although the applicant’s three identified features formed part of the contribution, they did not in themselves add anything to the stock of human knowledge and were merely conventional, albeit necessary, steps in the method and/or system for enabling a buyer to purchase an NFT at a POS.
The contribution was therefore found to be a particular method of conducting a financial transaction, and as such, it plainly fell within the business method exclusion.
It may well be an efficient, effective and secure way of acquiring NFTs, as the applicant submitted, but it was not considered to go beyond this, and no technical contribution was identified. The method and system made use of a computer program, but it merely served to implement the business method and was treated as a computer program “as such”.
Accordingly, the application was refused under section 18(3) of the UK Patents Act.
The decision confirms that NFTs are not excluded per se, but claims directed to financial transaction methods, such as purchasing, validation and availability filtering, will be rejected unless they demonstrate a technical solution to a technical problem.
To improve patentability prospects, applications should:
• Identify a specific technical problem (e.g. blockchain latency, POS constraints, security mechanisms or data validation techniques);
• Explain how the solution is technically implemented;
• Show that it produces a technical effect, not merely a business outcome.
Ultimately, the patentability of NFT-related inventions will depend on the technical problem they address and whether the application demonstrates, through technical implementation, how the solution is achieved.
If you want to discuss any of these matters, do not hesitate to contact us, or Dr Romi Korotana.
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About Romi Korotana

Murgitroyd is a leading intellectual property firm supporting innovative businesses across a wide range of sectors. From patents and trade marks to designs, copyright, and IP strategy, their expertise extends beyond legal protection to helping organisations maximise the value of their ideas. Working across industries such as life sciences, engineering, technology, and creative sectors, Murgitroyd combines technical insight with commercial understanding to deliver tailored, forward-thinking solutions.