You sell watch bands. They fit the Apple Watch. If you can’t use the words “Apple Watch” on your packaging, how will anyone know what you are selling?

You might think: “I can’t use their name! They will sue me!”

Relax. Trademark law has a safety valve called “Fair Use.”  

This rule says: You are allowed to use a competitor’s trademark if it is the only way to describe your own product—as long as you don’t confuse people into thinking the big brand endorsed you.

In the world of trademarks, “Fair Use” is the legal shield that allows you to use another company’s protected brand name without their permission. While most people associate fair use with copyright (think YouTube snippets or book quotes), trademark fair use is fundamentally different. It isn’t about the “amount” you use; it is about the “purpose” of your use. There are two primary categories that every brand owner needs to understand:  Descriptive Fair Use and Nominative Fair Use.

Descriptive Fair Use (also known as “Classic Fair Use”) occurs when you use a trademarked term in its ordinary, dictionary sense to describe your own product. For example, if a company has a trademark for the word “Arctic” for winter coats, they cannot stop you from saying your coats are “perfect for arctic temperatures.” You aren’t using “Arctic” as your brand name; you are using it to describe the weather. Nominative Fair Use is even more common. This is when you use a competitor’s name specifically to refer to their product. This happens in comparative advertising (“Brand X tastes better than Brand Y”), repair services (“We fix iPhones”), or news reporting. In these cases, the law recognizes that you literally cannot have a conversation about the other brand without using its name.

However, fair use is not a free pass to do whatever you want. To qualify for this defense, your use must meet a strict three-part test: the product must not be easily identifiable without the name, you must use only as much of the mark as is necessary (usually just the plain text, not the logo), and you must do nothing to suggest that the other company sponsors or endorses you. If you start using their specific font, colors, or “trade dress,” you’ve likely crossed the line from fair use into infringement.

Plain English Explanation

Fair use is a set of rules that lets you use a competitor’s brand name in your own business without getting sued. You can use it to describe your products, like saying your candy is “sweet and tart” even though “Sweetarts” is a registered brand. You can also use it to compare your products to theirs or to tell customers that you repair their specific brand of equipment. As long as you aren’t trying to trick people into thinking you are part of their company or using their fancy logos, the law generally says you have a right to use those words.

The Rules of the Road (How to Stay Safe)

To claim Fair Use, you must follow the “Goldilocks” rules:

1. Use Only What is Necessary

• ✅ YES: You can use the word “iPhone.”
• ❌ NO: You cannot use the Apple Logo (the apple with the bite out of it). You never need the logo to describe compatibility. Using the logo implies a partnership.

2. Accuracy is King

• ✅ YES: “Strap for Apple Watch.” (This describes the function).
• ❌ NO: “Apple Watch Strap.” (This sounds like Apple made the strap).
• The Magic Words: Always use qualifiers like “Compatible with,” “Fits,” or “For.”

3. Don’t Look Like Them

• ✅ YES: Your packaging looks totally different from Apple’s clean white box.
• ❌ NO: You copy their font, their color scheme, and their minimalism so closely that a customer grabs your box thinking it’s theirs.

The TL; DR Summary

Trademark Fair Use is a legal defense allowing the unauthorized use of another’s mark for descriptive or nominative purposes. Descriptive fair use applies when a mark is used in its primary, dictionary sense. Nominative fair use applies when the mark is used to identify the actual trademark owner’s goods or services. It requires that the use is necessary, minimal, and does not imply sponsorship.

 Key Takeaways

• Words Only: Never use their logo. Ever.
• Prepositions Matter: “For Toyota” is legal. “Toyota Parts” is risky.

Don’t lie: Fair use only applies if your product actually fits.