Rights you never registered, and rights you cannot search for
A trademark register is not a complete list of who has rights in a name. In the United States and the United Kingdom, trading under a name creates rights in it without any filing. That helps you if you have been trading. It is a problem when you are choosing a name, because the earlier user you clash with may not appear on any register at all.
As an earlier user, you may be able to stop a later business, or oppose its application, without owning a registration. As a newcomer, a clean register search does not clear a name, because a business trading under it for years may have rights that no database shows. Both follow from the same rule.
United States: rights come from use
US trademark law is built on use. Registration with the USPTO adds a great deal: nationwide priority from the filing date, a legal presumption of ownership and validity, the right to use the ® symbol, and the ability to record the mark with US Customs. It is not what creates the right, though. A business that uses a name in commerce acquires common-law rights in it, and section 43(a) of the Lanham Act (15 U.S.C. § 1125(a)) lets the owner of an unregistered mark sue for false designation of origin.
The limit is geography. Common-law rights generally extend only to the area where the mark is actually used and known, plus a zone of natural expansion. A café that has traded under a name in one city for a decade has strong rights there and little or none three states away. Where a later business registers federally, the earlier local user can usually continue in its area, but may find itself confined to it.
US law also allows filing on an intent to use basis. You can apply before you have traded, and the filing date gives you nationwide priority once the mark is registered. The registration itself does not issue until you file proof of use. This is the reason to file early in the US rather than relying on use alone.
United Kingdom: passing off
UK law protects unregistered names through the tort of passing off. The modern formulation comes from the House of Lords in Reckitt & Colman Products Ltd v Borden Inc [1990], the “Jif Lemon” case. There, a lemon-shaped plastic container for lemon juice was protected against a rival's similar container. The claimant has to prove three things, often called the classic trinity:
- Goodwill attached to its goods or services in the minds of the purchasing public, under the name or get-up in question.
- Misrepresentation by the defendant, whether intended or not, leading the public to believe its goods or services are the claimant's.
- Damage, or likely damage, to the claimant from that mistaken belief.
Passing off is expensive to prove. The claimant has to produce evidence of goodwill, usually trading history, sales, advertising and customer recognition, instead of handing over a registration certificate. That cost is one of the best practical arguments for registering. Earlier unregistered rights can also support an opposition to someone else's UK application, and in the UK can be the basis of an objection to a company name at the Company Names Tribunal.
The European Union: no unitary unregistered right
There is no EU-wide unregistered trademark. Unregistered rights exist, if at all, under each member state's national law, and the rules differ widely. Some states protect only marks that have become well known, while others protect unregistered signs more generously. Under Article 8(4) of the EU Trade Mark Regulation, a national unregistered right of more than mere local significance can be used to oppose an EU trade mark application. Proving it means proving national law and national use. For a business trading in Europe without registrations, that position is weak and costly to defend.
The symbols
| Symbol | Means | Who may use it |
|---|---|---|
| ™ | A claim that the name is being used as a trademark | Anyone, registered or not. It has no legal status of its own, but it signals the claim |
| ℠ | The same claim, for services, mainly in the US | Anyone |
| ® | A registered trademark | Only the owner of a registration, and only in a territory where it is registered for those goods or services |
Using ® for a mark that is not registered is not a harmless flourish. In the UK, falsely representing a mark as registered is a criminal offence under section 95 of the Trade Marks Act 1994. In the US, it can undermine your own trademark claims. Wait for the certificate, and check that it covers the country where the product is sold.
What this means when you choose a name
- Search beyond the registers. Search engines, company registers, app stores, marketplaces, social platforms and trade directories in the markets you will sell into. A business trading under the name without a registration still counts.
- Pay attention to the local trader. An earlier local user is unlikely to stop you nationally in the US. It can still keep the name in its own area, and a dispute costs money even when you win.
- Record your own first use. Keep dated invoices, launch materials and archived web pages from the start. If you ever need to rely on unregistered rights, that is the evidence you will need, and it is hard to reconstruct later.
- Register once you are committed. Use creates rights, but registration makes them cheap to enforce and visible to anyone searching, which deters conflicts before they start.
Questions
I have traded under the name for three years. Do I need to register?
You may well have enforceable rights already, but they are limited to where you trade and expensive to prove. Registration fixes your priority and makes enforcement a matter of showing a certificate instead of building an evidence file. It also puts your claim where competitors will see it during their own searches.
Does registering a company or domain give me trademark rights?
No. A company name registration or a domain registration is not a trademark right. What creates unregistered rights is use of the name in trade, not the incorporation certificate. Plenty of businesses own the company name and the domain and still lose to an earlier trademark owner.
Someone registered the trademark after I started trading. Am I stuck?
Not necessarily. Earlier unregistered rights can support an opposition during the publication window and, in many systems, an invalidity action afterwards. Act quickly. Delay makes things harder in most systems, and in some it eventually bars the challenge. This is the point at which to take professional advice.
Related
- Searching the registersAnd the searches a register cannot replace
- The distinctiveness spectrumWhy some names are easier to protect at all
- Opposition windowsUsing earlier rights while it is still cheap
Published 2026-10-18. Outline of how unregistered rights work in the US, UK and EU, checked against the statutes linked below. Whether you have such rights, and what they are worth, depends on evidence. This is general guidance, not legal advice.