Patent, trademark, or copyright: which one do I actually need?

Introduction

Founders mix these up constantly, and the mix-up isn't just linguistic. It leads to real strategic errors: filing a trademark when what was needed was a patent, assuming copyright over code protects against a competitor copying the business model (it doesn't), or trying to patent a logo (you can't).

This is a short, practical guide to telling them apart.

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What is the difference between a patent, a trademark, and a copyright?

Three intangible assets, three rights.

• Patent: A patent protects what the product does technically. Example: a new compression algorithm, a new mechanical mechanism, a new chemical formulation.
• Trademark: A trademark protects how people recognise the brand. Example: the company name, the logo, the product name, a distinctive slogan.
• Copyright: Copyright protects specific creative expressions. Example: the source code, the website copy, the product photography, the marketing video.

Put differently: patents stop competitors from building the same thing. Trademarks stop competitors from pretending to be you. Copyright stops competitors from copying your specific words or images.

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A short decision tree

Work through these questions in order.

Question 1: Do you have a name, logo, or brand identifier you want to own?

If yes, register a trademark. This is almost always the first IP action a startup takes. A European Union trademark covers all 27 member states for a few hundred euros. It is cheap, relatively fast, and renewable indefinitely.

Question 2: Have you written creative work: code, copy, images, videos?

Copyright is automatic in Europe. The moment you write the code or the copy, you own the copyright. No registration needed. But you do need to make sure the copyright is owned by the company, not by individual founders, contractors, or freelancers. This is handled through assignment clauses in employment and contractor agreements. Get this right before your first investor does diligence.

Question 3: Is there a technical invention at the core of your product?

This is the question that matters most, and the one most founders skip. A technical invention here means: something the product does technically that is new, non-obvious, and solves a real technical problem. A novel algorithm, a new hardware design, a specific engineering technique. If yes, consider a patent. If unsure, take the free patentability test on ptntpwr.

Question 4: Is there information you deliberately keep confidential?

Customer lists, pricing formulas, proprietary data, internal algorithms you never publish. These are trade secrets. Protect them through NDAs, employment agreements, and access controls. No registration needed, but the protection evaporates if the secret leaks.

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Two confusions worth clearing up

"I have copyright on my code. That protects my product, right?"

No. Copyright protects the specific code as written. A competitor can read your product description, re-implement the same functionality in their own code, and sell it without infringing your copyright. The functionality, the thing the product technically does, is protected by a patent, not copyright. Copyright stops literal copying. It does not stop competition.

"Can I patent my company name?"

No. Patents protect technical inventions. Company names and logos are protected by trademarks. This is a common beginner mistake and simply not what the patent system does.

"Do I need all four?"

Most technical startups end up using three: a trademark, automatic copyright, and trade secret practices via contracts. The patent is a strategic choice, not a hygiene requirement. But for any startup whose defensibility depends on a technical innovation, it is usually the highest leverage IP action available.

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Conclusion

Patents, trademarks, and copyright aren't interchangeable. Each protects a different kind of asset, and choosing the right one for each asset is the foundation of IP strategy. The trademark is typically first (do it at launch), copyright is automatic (but needs the right contracts to sit in the company), and the patent is the strategic choice that most affects valuations and defensibility.

If you think there is a technical invention in your product, start with the free patentability test.

Take the test here.

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Frequently asked questions

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What is the difference between a patent, a trademark, and copyright?

A patent protects a technical invention and gives an exclusive right to use it for up to 20 years. A trademark protects brand identifiers such as names and logos, and is renewable indefinitely. Copyright protects creative works including code, text, and images, and is automatic in Europe. Each right covers a different kind of asset and they can all apply to the same company simultaneously.

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Do I need to register copyright for my software in Europe?

No. Copyright in software is automatic in Europe from the moment the code is written. There is no registration process or fee. However, you do need to ensure that the copyright is owned by the company rather than by individual founders or contractors. This is done through assignment clauses in employment and contractor agreements, and should be sorted before any investor does diligence.

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Can a trademark protect my product idea or technology?

No. A trademark protects brand identifiers, not technical ideas or product functionality. If a competitor builds the same product under a different name, your trademark does not stop them. Protecting the technical functionality of a product requires a patent. Most startups need both: a trademark for the brand and a patent for the underlying technical invention.

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How much does it cost to register a trademark in Europe?

A European Union trademark, which covers all 27 EU member states, typically costs between €250 and €1,000 depending on the number of product or service classes covered. Registration takes approximately four to six months if there are no oppositions. A European trademark is one of the most cost-effective IP registrations available and is usually the first formal IP action a startup takes.