Registered trademark search API

Trademark API

Anyone can register a trademark. You can do it as an individual or as a business.

What can you register as a trademark? Well, you guessed it, you can register a “mark” (logo, logomark). Typically, you would register a name (keyword) or some sort of a phrase like Nike’s “Just do it”.

When you register a trademark, it than becomes your intellectual property. As you will see later in this article, if you register a trademark as a company, it then becomes an intangible asset.

Why would someone register a trademark? Well, the reason is the same as why your parents named you. So that we know it’s you. To make you recognizable from others. It’s the same reason we create logos, register domain names, and so on.

Trademarks, Trademark Checks, and the Power of API for Developers

In today’s digital age, trademarks are more important than ever. They serve as a crucial tool for businesses to protect their brand identity and intellectual property. Ensuring that a proposed name, logo, or slogan doesn’t infringe on existing trademarks is a critical step for any entrepreneur or company.

Trademark checks, traditionally a manual and time-consuming process, have now evolved thanks to Application Programming Interfaces (APIs) that empower developers to perform trademark checks programmatically. In this article, we’ll delve into the world of trademarks, explore the importance of trademark checks, and discover how APIs are revolutionizing the way developers handle trademark searches.

Understanding Trademarks

A trademark is a legally registered symbol, word, or phrase that distinguishes a product or service from others in the market. It serves as a brand’s identity, allowing consumers to recognize and trust a particular source. Trademarks can be a logo, a company name, a product name, a slogan, or even a combination of these elements.

For example, the Adidas logo, the name “Coca-Cola,” and Nike’s famous slogan “Just Do It” are all trademarks. These trademarks are valuable assets, representing not just the product but also the reputation, quality, and trust associated with the brand.

Trademark is a company's intangible asset
A trademark is one of company’s intangible assets

The Importance of Trademarks

  1. Protecting Brand Identity: Trademarks are essential for safeguarding a brand’s identity. They prevent others from using similar names or logos that could confuse consumers and dilute the brand’s image.
  2. Legal Protection: Trademarks grant legal protection. If someone uses a trademarked name or logo without permission, the trademark holder can take legal action to stop the infringement and seek damages.
  3. Asset Value: Trademarks can be significant assets. They can appreciate in value over time and can even be bought and sold, just like physical property.
  4. Consumer Trust: Trademarks build consumer trust. When consumers see a familiar logo or brand name, they are more likely to trust the product or service, making trademarks a valuable marketing tool.

This is also important if you are registering a domain name, that it doesn’t infringe (contains the words) trademarks.

The Trademark Check Process

Before adopting a new brand name, logo, or slogan, it’s crucial to perform a trademark search. This search involves checking whether a similar or identical trademark already exists. Trademark searches aim to avoid legal conflicts, protect the brand’s integrity, and save time and resources that could be wasted on rebranding.

United States Patent and Trademark Office search example
United States Patent and Trademark Office (USPTO) search example containing the keyword “Nike”

Traditionally, conducting a trademark search involved labor-intensive manual processes. Legal professionals combed through databases of registered trademarks, looking for potential conflicts. This process was not only time-consuming but also prone to human error.

The Rise of API-Powered Trademark Checks

The emergence of APIs has transformed the way trademark checks are conducted. APIs (Application Programming Interfaces) are sets of rules and protocols that allow different software applications to communicate and interact with each other. In the context of trademark checks, APIs connect developers to vast databases of trademark information, streamlining the search process and providing more accurate results.

Here’s how APIs are revolutionizing trademark checks for developers:

1. Speed and Efficiency

APIs enable developers to automate trademark searches, drastically reducing the time and effort required. Instead of manually sifting through databases, developers can send a query to a trademark database via the API and receive results in seconds. This speed is crucial for businesses that need to make quick decisions about branding.

2. Comprehensive Databases

APIs connect developers to comprehensive trademark databases that cover various jurisdictions and regions. This ensures that trademark checks are not limited to a specific country but can be conducted globally. This is particularly important for businesses with international aspirations.

3. Real-Time Updates

Trademark databases are continually updated as new trademarks are registered and existing ones expire or are revoked. APIs provide real-time access to these updates, ensuring that businesses always have the latest information when conducting trademark checks.

4. Accuracy and Consistency

APIs eliminate human error from the trademark check process. They provide consistent and accurate results, reducing the risk of missing potential trademark conflicts. This reliability is essential for businesses seeking to protect their brand identity.

5. Integration Capabilities

Developers can integrate trademark check APIs into their own software applications, websites, or internal systems. This means that businesses can incorporate trademark checks seamlessly into their existing workflows and decision-making processes.

6. Cost-Effective

While traditional trademark searches often require hiring legal professionals, APIs are cost-effective. They offer pay-as-you-go pricing models, making trademark checks accessible to businesses of all sizes.

How a trademark API or trademark check API works?

How a Trademark API works
How a Trademark API works

Typically the way a Trademark API or Trademark Check API works is that:

  1. You send a keyword in an API request. You do this programmatically with PHP, JavaScript or other programming language
  2. The API provider then inspects their database of registered trademarks.
  3. The API provider returns a response (typically in a JSON or XML format)

You are then able to display this response to your client within your application.

How Developers Can Use Trademark Check APIs

For developers interested in harnessing the power of trademark check APIs, here’s a simple guide:

1. Choose a Trademark Check API Provider

Start by selecting a reputable trademark check API provider. Look for providers with a strong track record in trademark data accuracy and reliability. Consider factors like pricing, data coverage, and support.

2. Register for API Access

Sign up for access to the chosen API. This typically involves creating an account, agreeing to terms of service, and obtaining API keys or tokens that will be used to authenticate your requests.

3. Understand API Documentation

Familiarize yourself with the API documentation provided by the provider. This documentation will explain how to make requests, the available endpoints, and the expected response formats.

4. Make API Requests

Use your API key to make requests to the trademark database. Most APIs support queries based on keywords, trademarks, or other relevant parameters. You can also specify the jurisdiction or region you want to search in.

5. Handle API Responses

Process the API responses in your application. Typically, responses will include details about existing trademarks that match your query. You can then use this information to make informed decisions about your branding.

6. Implement Error Handling

Develop robust error handling in your application to address issues like API downtime, rate limiting, or invalid requests. This ensures that your trademark checks run smoothly.

7. Stay Updated

Keep your application up-to-date with the latest API versions and changes. This ensures that your trademark checks remain accurate and reliable over time. It’s also a good idea to subscribe to the company (API provider) newsletter so that you are informed about major news, discounts, and updates.


Trademarks are invaluable assets that businesses must protect. Trademark checks, once a laborious manual process, have been revolutionized by APIs, enabling developers to perform these checks quickly, accurately, and cost-effectively.

The speed, efficiency, and global reach of trademark check APIs make them an essential tool for any business looking to safeguard its brand identity and navigate the complex world of intellectual property. As technology continues to advance, APIs will play an increasingly vital role in simplifying and enhancing trademark-related processes for businesses of all sizes.


Goran Duskic has been the Founder and CEO of WhoAPI Inc. since 2011, a company that specializes in developing APIs, including the well-known Whois API. He started his career in internet entrepreneurship in 2006 and has co-founded several online businesses, including a web hosting company that he later sold. Goran's work primarily involves creating practical API solutions to meet technological needs.