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International Niza Classification in Chile | Guide 2026

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The International Niza Classification is an essential system for trademark registration, used worldwide to classify products and services. In this blog, we will explore what the Niza Classification is, its importance, how it works in Chile, and some practical tips for its application.

What Is the International Niza Classification?

The Niza Classification is a classification system that groups products and services into different classes. It was established by the Nice Agreement in 1957 and has been adopted by many countries, including Chile. It currently comprises 45 classes, where classes 1 to 34 refer to products and 35 to 45 to services.

You can consult the complete list of classes on the website of the World Intellectual Property Organization (WIPO)

Importance of the Niza Classification

  1. Standardization

    Facilitates trademark registration by providing a uniform system that is internationally recognized.

  2. Clarity

    Helps applicants clearly define the products and services they wish to protect, avoiding confusion.

  3. Conflict Prevention

    By classifying properly, the risk of conflicts with already registered trademarks is reduced.

How the Niza Classification Works in Chile

In Chile, the Niza Classification is used by the Instituto Nacional de Propiedad Industrial (INAPI) for trademark registration. When you submit a registration application, you must specify the class or classes under which you wish to protect your trademark.

Step by Step to Use the Niza Classification in Chile

  1. Identify the Class: Before registering your trademark, review the classes of products and services. You can access the Niza Classification on the INAPI website.

  2. Conduct a Search: Make sure there are no similar trademarks in the same class.

  3. Complete the Application: When filling out the application form, make sure to include the correct class.

  4. Submit Your Application: Send your application to INAPI with all the necessary documentation.

Practical Tips

  • Consult with an Expert: If you are not sure which class to choose, consider consulting us for help.

  • Review Regularly: The Niza Classification is updated periodically. We stay informed about any changes that may affect your registration.

  • Protect Your Trademark in Multiple Classes: If your business covers different products or services, consider registering your trademark in multiple classes for broader protection.

Related Articles and Resources

β†’ Explore all Niza classes β€” hub with all 45 classes

β†’ Class 1 β€” Chemical products | Class 9 β€” Technology and computing | Class 35 β€” Advertising and business

β†’ Check if your trademark is available β€” free search

β†’ Renew a registered trademark β€” deadlines and fines

Frequently asked questions

What is the Nice International Classification?

The Nice Classification is the international system that organises products and services into 45 classes for trademark registration. In Chile, INAPI adopts this same system: every trademark is registered in one or more classes that define which products or services are protected. It is the standard used by more than 150 countries.

Why do I have to choose a class when registering my trademark?

Because trademark protection only applies within the classes you register in. If you register a bakery in class 30 (foods), someone else can use the same name for a clothing shop in class 25 without infringing on your right. Picking the right classes defines the real scope of protection.

How do I know which Nice class applies to my business?

First identify exactly what you sell or which service you deliver. Classes 1 to 34 cover physical products grouped by industry; classes 35 to 45 cover services. If you sell clothing, the class is 25; if you run a restaurant, 43; if you sell SaaS, typically 42. At CheckMarca we guide you through the choice β€” every wrong class means a fresh application from scratch.

Can I register my trademark in more than one class?

Yes, and often you should. Each additional class carries its own INAPI fee plus our handling fee, but the search and tracking effort is shared. If your trademark spans several business categories, registering in 2 or 3 well-chosen classes protects you far better than registering in only one.

Can I change the class after registering the trademark?

No. The class of an existing registration cannot be changed. To extend protection into another class, you must file a new application: pay another INAPI fee and run the full processing timeline from scratch. That is why it pays to choose the classes carefully upfront.