In the United States and most other countries trademarks are categorized into 45 different groups. These groups are known as classes (aka international classes) and they are designed to broadly describe the goods and services that a trademark will cover.

Each trademark application must designate at least one class, although multiple classes may be claimed in a single application. If multiple classes are claimed, then the trademark will be entitled to a broader amount of protection. The USPTO charges a filing fee per each class included in the application.

The chart below lists the available classifications for U.S. trademark applications. Classes 1 through 34 are used for different types of goods and Classes 35 through 45 are used for services. For further explanation on what’s included and not included in each category you can visit the USPTO Website.