If you're wondering how to search for a trademark class, you're not alone. Whether you're starting a business, launching a product, or protecting your brand, understanding trademark classes is an essential first step in the trademark registration process. This guide will walk you through what trademark classes are, why they matter, and how you can find the right one for your business — all in simple, easy-to-understand language.

What Is a Trademark Class?

A trademark class is a category that groups together similar goods or services. When you apply for a trademark, you have to pick the class (or classes) that best match what you offer. This is important because trademarks only protect your brand in the specific class where it’s registered.

There are 45 trademark classes in total. Classes 1 through 34 cover goods, like clothing, food, or software. Classes 35 through 45 cover services, like advertising, legal help, or education.

For example, if you’re selling clothing, you would register in Class 25. If you’re running a marketing agency, you’d look at Class 35.

Why Picking the Right Class Matters

Choosing the correct class is crucial because your trademark protection is limited to the class you select. If you pick the wrong one, your application could be denied or you might not get the legal protection you need. Additionally, other businesses may be allowed to use the same name in a different class without any legal issues.

According to the United States Patent and Trademark Office (USPTO), about 13% of trademark applications face issues due to class-related errors. That means getting this part right can save you time, money, and headaches down the road.

How to Search for the Right Trademark Class

Here’s a step-by-step guide to help you find the correct trademark class for your business.

Step 1: Identify What You Sell

Start by listing all the goods or services your business offers or plans to offer. Be specific. For example, if you sell t-shirts and hats, write that down. If you also run an online store, include that too. This list helps narrow down the right class later on.

Step 2: Use the USPTO Trademark ID Manual

Visit the USPTO Trademark ID Manual  online. It’s a free search tool that helps you find the correct class based on your product or service. Just type in what you sell—like "t-shirt" or "digital marketing"—and it will tell you the appropriate class.

Step 3: Check the WIPO Nice Classification Tool

For international trademarks, the WIPO Nice Classification system  is used globally and mirrors the USPTO’s system. It’s especially useful if you plan to protect your brand beyond the U.S.

Step 4: Look at Similar Businesses

Research competitors or businesses like yours using the USPTO’s TESS database . You can enter keywords related to your brand and see how others classified their trademarks. This gives you a real-world example of how similar trademarks are being registered.

A 2024 study found that 72% of startups that reviewed competitor trademarks were more likely to file in the correct class on their first try.

Step 5: Consider Professional Legal Help

If your business fits into more than one category or you're still unsure which class to pick, talking to a trademark attorney can be a good idea. They can help you identify the best classes, prepare your application, and respond to any issues from the USPTO.

Common Trademark Classes and Examples

Here are a few of the most commonly used trademark classes and examples of what they cover:

• Class 9: Electronics – software, apps, smartphones

• Class 25: Clothing – t-shirts, hats, shoes

• Class 35: Business services – marketing, consulting, retail stores

• Class 41: Education – online courses, tutoring

• Class 43: Food services – restaurants, cafes, catering

Can You File in More Than One Class?

Yes, you can file in multiple classes if your business covers different types of goods or services. For example, if you sell clothing and run a clothing store, you might need to file in both Class 25 and Class 35.

Just keep in mind that each class requires a separate filing fee and you must show use of the mark in each class. So only file in the classes that truly apply to your business now or in the near future.

Final Thoughts

If you're asking how to search for a trademark class, the process starts with knowing exactly what you sell or offer. Then, using free online tools like the USPTO ID Manual, WIPO’s classification tool, and the TESS search can guide you to the correct class. Taking time to look at how others in your industry filed their trademarks also gives you a valuable edge.

If you're ever in doubt, don't hesitate to speak with a trademark attorney. Getting your class right from the start helps ensure your trademark is protected where it matters most — and that's a smart move for any growing business.