What IP rights subsist in the AI system itself? For most AI systems, implemented as software running on off-the-shelf computer hardware, the rights in those systems will be those that arise in the context of developing other types of software – primarily copyright, rights in confidential information/trade secrets and potentially patents. While the IP rights may be the same as for other software, establishing the subsistence of IP rights in an AI system and ownership of those rights are more complicated than for other software because the underlying logic of the AI system is often developed, not by a human, but by the system itself and the law, as it stands, only recognises humans as authors or inventors – these issues are considered further below in section 3, "IP in AI generated works".
There is no copyright in an algorithm itself, but the source code of an AI system is protected by copyright as a literary work. Copyright prevents copying and, while this extends to more than just the text of the code and includes its structure, sequence and organisation, it does not protect the functionality achieved by the AI system – in other words, it does not guard against someone (or something) independently creating different code to produce the same output.
A patent (a registered right, rather than arising automatically like copyright) protects functionality and offers stronger protection than copyright in that it prevents others from subsequently using or selling another system that falls within its scope, even if that other system was created independently. There are various conditions to be met and exclusions that make patenting AI challenging: neither a computer program, nor an algorithm, nor a "method for performing a mental act" "as such" for example is patentable. However, a non-obvious AI invention with a technical effect that solves a technical problem is eligible for patent protection. In September 2022 the UK Government produced guidance on the patentability of AI inventions.
In addition to the patentability hurdles to cross and the time and cost of obtaining a patent, the quid pro quo for patent protection is the requirement publicly to disclose how the system works as part of the application process, such that the patent claims are available to view on the patents register. Some AI developers may instead prefer to keep key aspects of their system secret. In these circumstances, the "black box" nature of AI – the fact that its inner workings are not revealed by its output – is an advantage (from the owner's perspective) because it makes it possible to rely on the common law of confidential information, along with the statutory protection that sits alongside it through the Trade Secrets (Enforcement) Regulations 2018, to protect various aspects of the AI system e.g. the algorithm, the functionality of the AI and its training data. The disadvantage of this (for the rest of the world) is that it clashes with the "responsible AI" principle that systems that have potentially far-reaching implications for people's rights and freedoms should be transparent.