Can Software Be Patented? Computer-Implemented Inventions in Turkey and Europe

Whether an invention related to software can be patented is one of the most debated topics. The key distinction is this: computer programs, taken as such, that is as software alone, are not regarded as inventions. However, applications in which the software produces a technical effect may be considered.

A technical effect means that the software brings a measurable improvement to how a computer or another technical system works. For example, an algorithm that processes sensor data to reduce a device's energy consumption, a system that manages network traffic more efficiently, or a production machine whose error rate is reduced may be regarded as having a technical effect.

By contrast, subjects such as business rules, mathematical methods, game rules, or simply the way information is displayed on a screen may not be sufficient on their own. If the protection of a screen interface is desired, that is a separate legal route and may be assessed through design registration.

In Turkey and in Europe, the subject is handled under the applicable legislation and office practice. In general, the relationship of software-related claims with hardware, the technical problem solved by the invention and the measurable effect are assessed together. Detailed criteria are interpreted over time and may change, so this article offers only a general framework.

Points to watch:

• The technical problem solved by the invention must be clearly defined.
• The hardware or technical processes linked to the software should be stated.
• The effect should be shown through a measurable technical result.
• Claims written only as business rules or commercial methods may increase the risk of refusal.

A possible mistake in software inventions is writing the application like a product brochure. A patent file must describe the technical solution, not the functions. Publishing the full code is not mandatory, but the technical implementation must be described clearly enough.

Disclosures such as publishing the software as open source or a product launch can affect novelty. In Turkey, the inventor's own disclosure has a 12-month grace period (SMK Article 84), which may not apply abroad. Under the Paris Convention, the priority right for patents is 12 months. This exception depends on the source and timing of the disclosure and the conditions of SMK Article 84; disclosure records require case-specific review.

A development team can prepare a system flow rather than relying only on screenshots. A diagram showing the data source, processing steps and changes in the technical system is useful. Performance comparisons should record hardware, test conditions and baseline measurements. Better user experience does not automatically establish a technical effect. Demonstrating technical effect alone also does not establish patentability: novelty, inventive step and industrial applicability require separate examination. Organising open-source components, contracts and development records helps explain which part of the implementation is the team’s work. These matters should be assessed separately from the technical assertions.

A preliminary assessment is useful for checking whether the technical effect is strong and for clarifying the filing strategy. The current TÜRKPATENT tariff applies to fees; please verify before filing. For software-related inventions, see our service page: /en/hizmetler/patent-basvurusu This article is for general information only; for an assessment specific to your file, please consult our patent attorney.