A thorough search is the most useful step you can take before filing a United Kingdom trademark application. The UKIPO examiner checks your trademark against absolute grounds (descriptiveness and the like) and also runs a search of earlier trademarks, but the office will not refuse your application because of an earlier similar trademark. Instead it notifies the owners of those earlier trademarks, and it is up to them to oppose. Knowing what is on the register before you file lets you choose a name that will not draw an opposition.
This guide explains how to run an effective United Kingdom search using the UKIPO database and other resources.
Pro tip: For a search that covers registered and unregistered rights, request a free trademark check from our team before filing.
Why search before filing?
A search before filing puts you in control:
- Fewer oppositions. Owners of earlier similar trademarks are told about your application and can oppose during the 2-month publication period. A search shows you who they are before you file.
- Safer use. Even if your trademark registers, using it may infringe an earlier right. A search flags that early.
- Government fees kept. The government fee is £205 for one class plus £60 for each further class (UKIPO schedule from 1 April 2026), and it is not refunded if you withdraw or lose an opposition. See pricing for the Total, including our professional fee.
- Time saved. A clean application takes about four months to register; starting over doubles that.
The UKIPO's examination search is a notification tool, not a filter. The office does not refuse applications on relative grounds (similarity to existing trademarks). Owners of earlier trademarks decide whether to file an opposition during the publication period.
UKIPO Online Trademark Search
The UKIPO provides a free search tool at gov.uk/search-for-trademark.
Search by Trademark Number
If you know the specific trademark number (for example UK00003123456), you can look it up directly to see:
- Registration status
- Owner details
- Goods and services covered
- Filing and registration dates
- Any pending actions
Search by Keyword or Brand Name
The most common search method. Enter your proposed brand name to find similar trademarks.
Tips for effective keyword searches:
- Search for exact matches first
- Then try variations (plural forms, misspellings, phonetic equivalents)
- Remove spaces and special characters
- Search for each word individually if your trademark is multi-word
Search by Owner
Useful for competitive intelligence: see all trademarks registered by a specific company or individual.
Search by Classification (Nice Classes)
Filter results by the Nice classes relevant to your goods and services. A trademark in Class 25 (clothing) may not conflict with an identical trademark in Class 9 (electronics). Not sure which classes apply to you? Class Assist maps your goods and services to Nice classes.
Beyond the UKIPO Database
The UKIPO database only covers registered United Kingdom trademarks and pending applications. A full search should also check:
TMview
TMview is a free tool from the European Union Intellectual Property Network that searches across 70+ trademark offices, including the UKIPO.
Advantages:
- Many countries and regions in one search
- Includes EU trademarks that may have earlier priority
- Visual search for figurative marks
Common-Law Rights (Unregistered Trademarks)
In the United Kingdom, unregistered trademarks can acquire protection through the tort of passing off. A business that has built goodwill in an unregistered trademark can:
- Oppose your trademark application
- Sue for passing off even if your trademark is registered
To check for unregistered rights:
- Search Companies House for similar business names
- Search domain name registries
- Check social media platforms and online marketplaces
- Review industry directories and trade publications
International Registrations
Search WIPO's Global Brand Database for international registrations under WIPO's Madrid System (the Madrid Protocol) that cover the United Kingdom.
Understanding Search Results
Identical Trademarks
An identical trademark in the same or a similar class is the clearest conflict. Expect the owner to oppose.
Similar Trademarks
Assessing similarity involves three factors:
- Visual similarity: how the trademarks look when written or displayed
- Phonetic similarity: how the trademarks sound when spoken
- Conceptual similarity: what the trademarks mean or suggest
The UKIPO and United Kingdom courts apply the "global appreciation" test, considering the overall impression of the trademarks rather than analyzing individual elements in isolation.
Goods and Services Overlap
Even a similar trademark may not conflict if the goods and services are sufficiently different. Well-known marks, though, enjoy broader protection that can extend beyond their registered classes.
Phonetic and Visual Similarity Analysis
Phonetic conflicts are commonly overlooked:
| Your Trademark | Potential Conflict | Why |
|---|---|---|
| KLEEN | CLEAN | Phonetically identical |
| PHAST | FAST | Phonetically identical |
| BYKE | BIKE | Phonetically identical |
| GREYSTONE | GRAYSTONE | Visually and phonetically similar |
The UKIPO and the Appointed Persons have consistently held that phonetic similarity alone can be enough to refuse or invalidate a trademark.
Classification Strategy
The United Kingdom uses the Nice Classification (the same system as the EUIPO and most other offices). When searching, consider:
- Your primary class: the core goods and services
- Related classes: classes where consumers might expect your brand to operate
- Defensive classes: classes where confusion could damage your reputation
For example, a coffee brand (Class 30) should also search Class 43 (café services), Class 35 (retail services), and Class 21 (coffee-related merchandise).
The GTC advantage: Our United Kingdom trademark filing service includes a multi-class search and a classification strategy, so you see what is on the register before you file.
Search Limitations
What the UKIPO Database Will Not Tell You
- Common-law rights: unregistered trademarks with goodwill
- Very new applications: newly filed trademarks may not appear immediately
- International registrations: registrations through WIPO that cover the United Kingdom can take time to appear
- Degree of risk: the database shows what exists, not how likely an owner is to oppose
When to Get Professional Help
Consider a professional search if:
- Your trademark is similar (but not identical) to existing trademarks
- You are filing in multiple classes
- You are entering a crowded market (fashion, tech, food and beverage)
- Your brand name is a common English word or phrase
- You are investing significantly in brand development
A professional search comes with our team's opinion on registrability and a filing recommendation. It is included in our United Kingdom filing packages; see pricing for the current figure.
Search Smart, File Confidently
A good search today means a smoother application tomorrow. Whether you are filing your first United Kingdom trademark or building a portfolio, start with a thorough search, then file with a clear picture of the register. For fees, timelines, and the full process, see our United Kingdom country guide.
Start with a free trademark check, or go straight to United Kingdom trademark filing.
Sources
Frequently Asked Questions
Is the UKIPO trademark search free?
Yes. The UKIPO provides a free online search tool at gov.uk. Free searches have limits: they may miss phonetic similarities, common-law rights, and international registrations.
Does the UKIPO check for conflicting trademarks during examination?
Partly. The UKIPO searches earlier trademarks and notifies their owners about your application, but it does not refuse on relative grounds (Section 5 TMA 1994). Only absolute grounds (Section 3) lead to refusal at examination. Owners of earlier trademarks must file an opposition themselves.
How far back should I search?
Search all live registrations regardless of age. United Kingdom trademarks last 10 years and can be renewed indefinitely. Also search pending applications.
Should I search EU trademarks too?
Yes. EUTMs no longer cover the United Kingdom, but owners of earlier EUTMs received comparable United Kingdom trademarks at Brexit and may have filed further United Kingdom applications since. If you plan to expand into the European Union, conflicts there matter too. See our EU trademark search guide.
Can I file a United Kingdom trademark if I find a similar trademark?
Possibly. Similarity does not automatically mean conflict. It depends on the degree of similarity, the goods and services overlap, and the reputation of the earlier trademark. A professional assessment is strongly recommended.
What is a "passing off" claim?
Passing off is a United Kingdom common-law tort that protects unregistered trademarks. A business can bring a passing-off claim if you use a trademark that is likely to cause confusion with their established goodwill, even if their trademark is not registered.
