Search Trademarks by Class in US: A Comprehensive Guide
The process of searching trademarks by class in the US is a crucial step in ensuring that your trademark is available for registration and does not conflict with existing trademarks. In this article, we will guide you through the process of searching trademarks by class in the US, using the United States Patent and Trademark Office (USPTO) database.
Understanding Trademark Classification
Trademark classification is the process of categorizing goods and services for trademark registration. It is essential to select the correct class when filing a trademark to define the scope of protection, navigate the examination process smoothly, and enable efficient trademark searches and portfolio management.
USPTO Trademark Classes
The USPTO uses a classification system, known as the International Classification (IC), which consists of 45 classes of goods and services. Each class can cover a wide range of goods or services, and searching available trademarks by class can help narrow down available prospects.

Trademarks by Class Numbers
- Class 1: Chemicals
- Class 2: Paints
- Class 3: Cosmetics and Cleaning Preparations
- Class 4: …
- Class 45: Entertainment Services
Searching Trademarks by Class in US
To search trademarks by class in the US, you can use the USPTO's searchable database, known as the Trademark Electronic Search System (TESS). This database allows you to search for trademarks by name, number, or class numbers.