USPTO Trademark Classes Explained: Which Class Does Your Business Need?
When you file a trademark with the USPTO, you must specify which international class — or classes — cover your goods or services. Getting this right is critical: a trademark only protects you within the class you register. Filing in the wrong class is like locking the front door and leaving the back door open.
What Are Trademark Classes?
The USPTO uses the Nice Classification system, an internationally recognized framework that divides all goods and services into 45 classes: Classes 1–34 cover goods, and Classes 35–45 cover services. You pay a separate USPTO filing fee for each class you include in your application.
The Most Common Trademark Classes for US Businesses
Class 25 — Clothing, Footwear, Headgear
Essential for apparel brands, clothing lines, athletic wear, shoes, hats, and accessories. If you’re building a fashion brand, this is almost certainly your primary class.
Class 35 — Advertising and Business Services
Covers retail services (online and physical), business management, marketing, and advertising. E-commerce brands often need both Class 35 (for selling services) and the class covering their actual products.
Class 42 — Scientific and Technology Services
The class for software, SaaS products, mobile apps, IT services, cloud computing, and technology consulting. If your business is software-based, this is likely your primary class.
Class 41 — Education and Entertainment
Covers online courses, coaching, training programs, entertainment services, podcasts, and publications. Content creators and educators frequently register in this class.
Class 44 — Medical and Beauty Services
Covers healthcare services, dental services, medical spas, skincare brands providing services, and beauty salons.
Class 43 — Food and Beverage Services
The class for restaurants, cafes, bars, catering companies, food trucks, and hotel accommodation services.
Class 9 — Electronics and Software Products
Covers downloadable software, apps, computer hardware, electronic devices, and recorded media. Different from Class 42 (which covers software services) — Class 9 is for downloadable/physical software products.
How Many Classes Do You Need?
You only need to register in classes that directly cover your actual goods and services. Many small businesses only need one class. However, if you sell both a product and related services, you typically need two classes.
Example: A company selling project management software (Class 42) AND branded merchandise like T-shirts (Class 25) would need both classes — two applications, two filing fees.
What Happens If You File in the Wrong Class?
Filing in the wrong class means your trademark registration won’t protect you against infringement in your actual business category. Worse, you can’t simply “move” a trademark to the correct class — you’d have to file an entirely new application and pay new fees. Our case analysts verify your class selection before every application we file.
Do You Need to Register in Every Class?
No. Trademark rights are limited to the classes you register. A trademark in Class 25 (clothing) doesn’t stop someone from using your mark for software (Class 42), unless there’s a likelihood of confusion. Focus on the classes where you actually operate — don’t pay extra fees for classes you don’t use.
Get Expert Class Selection Help
Selecting the right trademark class is one of the most common errors in DIY applications. Secure Mark USA’s Senior Case Analysts verify your class selection and ensure your description matches USPTO requirements — preventing costly rejections before they happen.