How to Search Trademarks Effectively in the U.S. in 2026

If you are searching for a trademark in 2026 using the methods you learned in 2022, you are essentially driving a car with a map from the 1990s. The retirement of TESS was just the beginning; the real power lies in the Expert Mode and AI-assisted classification that followed.

The USPTO has fully transitioned to its advanced cloud-based USPTO Trademark Search platform. Your trademark is not necessarily safe if no one else has your exact name. The USPTO doesn’t just look for your name; it looks for your brand’s “commercial impression.”

You also have to worry about names that are similar enough to confuse people. This guide will show you how to navigate this new digital system.

Essential Tools for the 2026 Searcher

Expert Mode allows you to use Field Tags to filter data with surgical precision. For example, you can use the [cm] tag for a broad search of the “Combined Word Marks” or [gs] to search only the description of Goods and Services.

You need a verified account to:

• Use the “Search by Image” interface.
• Save and export your search history.

The USPTO also provides you with a tool that allows you to upload your logo. The system then returns marks that look similar.

Class ACT (Agentic Codification Tool) is an AI agent that performs “codification” almost immediately. Now you can see applications that were filed just days or even hours ago.

Always supplement AI analysis with a manual Design Search Code query.

Search for Your Mark

You can use this search to catch exact matches or near-identical names already registered in your industry. The [cm] field tag (Combined Word Marks) is your most powerful tool. For example, when you type (Lumina)[cm] in the Expert Mode command bar, you will get every mark where “Lumina” is the primary brand name.

You can also use Boolean operators to combine your search terms. For example,

• Lumina AND Lighting only shows records containing both.
• Lumina OR Lighting shows records with either term.
• Lumina NOT Flooring hides results that are related to the flooring industry.

The USPTO does not look for an exact match but also for names that sound similar or look close. In such cases, your application may be rejected.

For example, an average customer cannot phonetically distinguish between “kwik” and “quick.”

Wildcards and the Proximity Operator

Wildcards

Operator	What it represents	Search Example	Results
Asterisk (*)	Any number of characters	*uick*	“Quick,” “Quickly,” “Liquid,” “Quicksilver”
Question Mark (?)	Exactly one character	Advi?e	“Advice,” “Advise”

Proximity (Tilde)

This operator searches for terms that appear close to each other, even if they aren’t side-by-side.

Search Example	Results
“Blue Mountain”~3	Blue MountainMountain BlueBlue Rocky Mountain

Here 3 is the maximum number of words

Regular Expressions (Regex)

Regular expressions allow you to use patterns to search. For example, typing CM:/L[uy]m[iy]na/ in Expert Mode tells the system to find any variation where the “u” might be a “y” and the “i” might be a “y.”

The Design Code

While the “Upload Image” tool is revolutionary, you cannot solely rely on it. AI searches for visual similarity, and trademark law is concerned with conceptual similarity.

Use the image upload to find “look-alikes,” and use Design Search Codes to find “concept-alikes.”

To find conflicting logos, use the USPTO’s 6-digit numerical indexing system. This breaks every possible visual element into categories, divisions, and sections.

Example Let’s assume that the code for owls is 03.15.25. Searching (03.15.25)[dc] AND (coffee)[gs] in Expert Mode will show every owl logo ever registered in the coffee industry.

The “Dead” Mark Analysis & Common Law Reality

A “DEAD” status doesn’t mean the name is available. A mark may be dead, but the owner is still selling products, holding Common Law Rights. These brands can sue you for infringement or block your federal registration if they were using the name first.

Before you commit to a name,

• Search Amazon, Etsy, and Walmart Marketplace to see if products are still in stock and shipping.
• Check for active handles on Instagram and TikTok.
• Use a WHOIS search to see if the website was recently updated.