How to Check if a Brand Name is Trademarked (Step-by-Step Guide)

You’ve found the perfect brand name. It sounds right, feels right, and your team loves it. But before you print business cards or register a domain, you need to answer one critical question: is it already trademarked?

Skipping this step can lead to cease-and-desist letters, forced rebranding, and legal fees that dwarf the cost of doing the research upfront. We’ve seen it happen to clients who came to us after choosing names on their own, and the recovery process is always painful and expensive.

This guide walks you through every method for checking trademark availability, from free DIY searches to professional-grade screening. Whether you’re naming a brand from scratch or evaluating names you’ve brainstormed using our brand naming guide, this is the legal homework you cannot skip.

Why Trademark Searches Matter

A trademark gives the owner exclusive rights to use a name (or logo, slogan, or sound) within a specific industry. If someone else has already trademarked the name you want, using it could result in:

• Legal action including cease-and-desist orders and lawsuits
• Forced rebranding after you’ve already built recognition
• Lost investment in marketing, packaging, signage, and digital assets
• Damaged credibility with customers who see your brand disappear or change overnight

The cost of a proper trademark search is a fraction of the cost of rebranding. Think of it as insurance for your most important brand asset.

Step 1: Search the USPTO Trademark Database (TESS)

The United States Patent and Trademark Office maintains the Trademark Electronic Search System (TESS), which is the primary database for federally registered trademarks and pending applications.

How to search TESS

1. Go to the USPTO trademark search page at tess2.uspto.gov
2. Select “Basic Word Mark Search (New User)”
3. Enter your proposed brand name in the search field
4. Set the “Field” dropdown to “Combined Word Mark”
5. Click “Submit Query”

What to look for

• Live marks (active registrations) in your industry are the biggest red flags
• Pending applications mean someone else is trying to register the same name
• Dead marks (expired or cancelled) may still have common law protections depending on ongoing use

Important nuances

TESS doesn’t just check for exact matches. You also need to search for:

• Phonetic equivalents (e.g., “Klear” vs. “Clear”)
• Spelling variations (e.g., “Foto” vs. “Photo”)
• Plural and singular forms (e.g., “Spark” vs. “Sparks”)
• Foreign language equivalents (the “doctrine of foreign equivalents” means a Spanish word and its English translation can conflict)

A name doesn’t have to be identical to create a conflict. If it’s “confusingly similar” in sound, appearance, or meaning within the same industry, it can be challenged.

Step 2: Search State Trademark Databases

Federal registration isn’t the only form of trademark protection. Each U.S. state maintains its own trademark registry, and a mark registered at the state level still carries legal weight within that state.

How to search state trademarks

Most states offer online trademark search tools through their Secretary of State website. The process varies by state, but generally:

1. Visit the Secretary of State website for relevant states
2. Navigate to the trademark or business name search section
3. Search for your proposed name and similar variations

Which states to prioritize

Focus on states where you plan to operate or where your competitors are based. If you’re launching nationally, you’ll want to check the major commercial states:

• California, New York, Texas, Florida, Illinois
• Any state where your target market is concentrated

This step is especially important if you’re a regional business that may not pursue federal registration immediately.

Step 3: Common Law Trademark Search

Here’s where it gets tricky. In the United States, you don’t have to register a trademark to have legal rights to it. Simply using a name in commerce creates “common law” trademark rights in the geographic area where it’s used.

This means a business that has been operating under a name for years, even without registration, can still challenge your use of a similar name.

How to search for common law marks

• Google search: Search the name plus your industry terms. Look beyond the first page of results.
• Google Maps: Search for businesses using the name in your target markets.
• Social media platforms: Check for accounts on Instagram, LinkedIn, Twitter/X, Facebook, and TikTok.
• Industry directories: Search trade associations, professional directories, and industry-specific platforms.
• Domain name search: Check if the .com, .net, and relevant country-code domains are registered. Even if a domain is parked, someone may have common law rights.
• App stores: Search the Apple App Store and Google Play for apps with the name.

Common law searches are time-consuming but essential. A professional brand naming service includes this research as part of the process, which saves you hours of investigation and reduces the risk of missing something.

Step 4: International Trademark Search

If you plan to operate outside the United States, or if you’re building a brand that could expand internationally someday, you need to check international trademarks as well.

Key international databases

• WIPO Global Brand Database: The World Intellectual Property Organization maintains a searchable database of international trademark registrations across 70+ trademark offices.
• EUIPO (European Union): For European trademark registrations, search the European Union Intellectual Property Office database.
• Country-specific offices: Major markets like the UK (UKIPO), Canada (CIPO), Australia (IP Australia), and India (IP India) maintain their own searchable databases.

The doctrine of foreign equivalents

U.S. courts apply the “doctrine of foreign equivalents,” which means a foreign word and its English translation can be considered confusingly similar. If you’re naming a brand with a word from another language (a common strategy, as we discussed in our brand name ideas analysis), make sure the English equivalent isn’t already trademarked in your category.

We consider international implications in all our naming projects. When we created names like Brennia (for a Maldives resort) and Elegore (for an Indian fashion brand), global trademark clearance was part of the process from day one.

Step 5: Check Domain and Social Handle Availability

While not a legal requirement, domain and social media availability is a practical necessity for any modern brand. A name that’s legally clear but digitally unavailable creates serious operational challenges.

Domain checks

• Search the exact .com domain first. While other extensions work, .com still carries the most authority.
• Check country-code domains if you’re targeting specific markets (.co.uk, .de, .in, etc.)
• Look at alternative structures: brand + keyword domains (e.g., “getbrandname.com” or “brandnameapp.com”)

For a deeper dive on this topic, read our guide on domain name strategy for new brands.

Social media handles

Check availability on all major platforms simultaneously:

• Instagram, Twitter/X, LinkedIn, Facebook, TikTok, YouTube, Pinterest

Consistent handles across platforms strengthen brand recognition and make it easier for customers to find you. If your exact name isn’t available on a key platform, consider whether a slight variation works or if it’s a dealbreaker.

Understanding Trademark Classes

Trademarks are registered within specific “classes” of goods and services. There are 45 international trademark classes (called “Nice Classification”), and a mark registered in one class doesn’t necessarily block the same name in a different class.

For example, “Delta” is trademarked by both Delta Air Lines (transportation) and Delta Faucets (plumbing fixtures) because they operate in completely different classes.

Key trademark classes for common industries

• Class 9: Software, apps, electronic devices
• Class 25: Clothing, footwear, headgear
• Class 35: Advertising, business management, retail services
• Class 41: Education, entertainment, training
• Class 42: Technology services, SaaS, web design
• Class 43: Restaurant and hospitality services

When searching, focus on classes relevant to your industry and adjacent classes where confusion could occur. A brand strategist can help you identify which classes matter for your specific business.

Red Flags to Watch For

Not every search result is a dealbreaker. Here’s how to evaluate what you find:

Definite stop signs

• An active federal registration in your exact industry class
• A pending application for the same or very similar name in your class
• A well-known brand using the name, even in a different class (famous marks get broader protection)

Proceed with caution

• A dead federal registration (investigate why it was cancelled and whether the business still operates)
• A small, local business using a similar name in a different geographic market
• A registered name in a clearly unrelated industry

Likely safe

• Common dictionary words used descriptively by others (e.g., “summit” used by a mountain climbing company doesn’t block “Summit Financial”)
• Dead marks with no evidence of ongoing use
• Foreign registrations with no U.S. presence or plans to enter the U.S. market

When in doubt, consult a trademark attorney. The cost of a professional opinion is far less than the cost of a legal challenge.

DIY vs. Professional Trademark Screening

DIY search (free, 2-4 hours)

A basic DIY search covers the essentials:

1. TESS database search for exact and similar matches
2. Google search for common law uses
3. Domain and social media availability checks

This is a reasonable starting point for early-stage brainstorming, but it has limitations. You may miss phonetic similarities, foreign equivalents, or state-level registrations.

Professional screening (included in naming services)

A comprehensive professional search includes everything above, plus:

• Phonetic and visual similarity analysis
• State trademark database searches
• International database screening
• Industry-specific directory searches
• Detailed risk assessment with recommendations

Our brand naming packages include preliminary trademark screening at every tier, with more comprehensive research at the Professional and Complete levels. This gives you confidence that the name you choose is defensible.

What to Do After Your Search

If the name is clear

1. Register the domain immediately. Domains can be snatched up quickly.
2. Secure social media handles on all relevant platforms.
3. File a trademark application or work with an attorney to do so.
4. Begin using the name in commerce to establish common law rights while your application is pending.

If the name is taken

Don’t panic. It’s common for first-choice names to have conflicts, which is why professional naming processes generate multiple options. Here are your alternatives:

1. Modify the name slightly while maintaining the brand essence
2. Explore a different trademark class if your business is in a genuinely different category
3. Contact the current owner to discuss acquisition or licensing (for dead or unused marks)
4. Go back to the drawing board with a fresh round of brand name ideas

The Bottom Line

Trademark research isn’t the most exciting part of building a brand, but it’s one of the most important. A few hours of research now can save you thousands of dollars and months of disruption later.

If you want trademark screening handled by professionals who’ve cleared 250+ brand names since 1998, explore our brand naming service. Every package includes trademark screening, domain verification, and a certificate of ownership for your chosen name.

The best brand name is one you can own, protect, and build on for decades. Make sure yours passes the legal test before you invest in everything else.