werbero.comThe magazine for advertising that works

Advertising Law

Trademark law for advertisers

Two questions: is your own name protected, and are you using somebody else's. Both have cheap answers now and expensive ones later.

May 14, 2025 2 min read 427 words
Trademark law for advertisers

Key points

  • Search before you launch a name; a rebrand after two years costs far more than a search.
  • Registration is inexpensive relative to the protection it provides.
  • Using a competitor's mark is permitted in limited, defined circumstances.

Trade mark issues arrive in two forms: somebody objecting to your name, or you objecting to somebody else's. The preparation for both is the same.

Search before launching

Before committing to a name, a claim or a product designation, search the relevant trade mark registers and the market.

The cost of a search is small. The cost of discovering a conflict after printing signage, vehicles, packaging and stationery is a rebrand, and rebranding a business with two years of accumulated recognition destroys real value.

The most expensive trade mark advice is the advice that was not taken before the vehicles were wrapped.
SourceWhy
National and regional trade mark registersregistered rights
Company registerscompany name conflicts
Domain registrationsavailability and conflict
General web and market searchunregistered use in trade
Social platform handlespractical availability

Search the classes relevant to your goods and services, and also adjacent classes where confusion is plausible.

Registration

Registration gives a clear, dated, enforceable right and makes enforcement straightforward. The cost is modest relative to almost any other business investment with comparable protective value.

What to register: the name, and where it is distinctive, the logo. A word mark is generally more valuable than a figurative one, because it protects the name in any presentation.

Register in the classes you actually trade in and those you plan to enter within the protection period.

Using somebody else's mark

Permitted in defined circumstances: in lawful comparative advertising; to describe the intended purpose of a product, such as compatibility or spare parts; and in genuine descriptive or referential use.

Not permitted: use that takes unfair advantage of the mark's reputation, that suggests a commercial connection, or that could cause confusion.

The compatibility case is common and needs care. Stating that a part fits a named vehicle is generally permitted; presenting the part in a way that suggests it is the manufacturer's own is not.

Bidding on competitor names

Using a competitor's trade mark as a search advertising keyword is generally permitted in European law where the resulting advertisement does not confuse a reasonably attentive user about the origin of the goods.

Using the mark in the visible advertisement text is a different question and considerably riskier.

Maintenance

Registrations require renewal, typically every ten years. Marks can also be challenged for non-use after a period, usually five years.

Keep evidence of use: dated material showing the mark in commerce, for each class.

When you receive a claim

Do not respond substantively without advice, and do not ignore it. Deadlines in trade mark disputes are short and the consequences of missing them are severe.

Frequently asked questions

Do you need to register a trade mark?

Unregistered rights exist in some jurisdictions and are harder to enforce. Registration is comparatively cheap and decisive.

Can you use a competitor's name in advertising?

In lawful comparative advertising and to describe compatibility, yes. To trade on their reputation, no.

More from Advertising Law

Keep reading

All articles
Labelling advertising: what the law requires

Advertising Law

Labelling advertising: what the law requires

The commercial purpose of a communication must be recognisable. That single principle explains almost every labelling rule in advertising.

2 min readJun 7, 2025
Influencer advertising: the legal basics

Advertising Law

Influencer advertising: the legal basics

The rules are settled and routinely breached. The exposure sits with the brand as much as the creator, and the contract is where it is managed.

2 min readJun 5, 2025
Avoiding misleading advertising

Advertising Law

Avoiding misleading advertising

A claim does not have to be false to be misleading. It only has to create an impression that does not correspond to reality.

2 min readJun 3, 2025