What Is the Difference Between TM, SM, and ®?

IfTM SM and registered trademark symbols you’re launching a brand, product, or service, you’ve likely seen the little ™, ℠, or ® symbols—and wondered which one you should be using.  The difference between TM, SM and registered trademark symbols comes down to what you are claiming, what you are suing the mark for, and whether it has been federally registered. 

Here’s the simple, legally sound breakdown from a 20+ year trademark attorney:

 

TM = Trademark

Use ™ when you’re claiming rights to a brand name or logo used with goods (like clothing, tech products, or packaging).
✅ You don’t need to file anything to use TM.
It signals to the world that you’re claiming common law rights over your mark.

SM = Service Mark

Use ℠ when your brand is tied to services (like coaching, consulting, or legal services).
It functions just like ™, but it’s specific to services instead of products.
℠ is less commonly used, but still legally valid.

® = Registered Trademark

Use the ® symbol to indicate that your trademark is federally registered with the U.S. Patent and Trademark Office (USPTO).
It is illegal to use  ® without official registration, you risk legal consequences and it can backfire.

✅ Once your mark is registered, use ® to put the world on notice that your trademark is protected at the highest level.

Case in Point: A Costly Mistake
A fashion entrepreneur contacted us after receiving a cease-and-desist letter from a national brand. She used the ® symbol on her logo, thinking it signaled that she meant business. Unfortunately, she had never federally registered her mark. Misusing the ® symbol opened her up to liability and threatened a brand she had spent years building. We guided her through the legal response, filed the correct application, and helped her regain her footing—this time with proper protection in place.

Why It Matters:

Misuse Can Backfire:

Using the ® symbol without a federal registration can result in serious consequences. The USPTO may view it as a deceptive business practice, leading to legal action or forced rebranding. On the flip side, once your mark is properly registered, you gain access to powerful enforcement tools—including Amazon takedowns, U.S. Customs recordation, and the ability to sue in federal court. In a crowded marketplace, that protection is often what separates a vulnerable brand from a lasting one.  Understanding the difference between TM, SM and registered trademark symbols helps businesses use each designation correctly and avoid misleading consumers. 

Using the right symbol helps:

  • Strengthen your legal position in case of infringement
  • Deter copycats
  • Signal professionalism and legitimacy

Want Help Protecting Your Brand?

I’ve helped hundreds of entrepreneurs secure their trademarks and enforce their rights. Whether you’re just starting out or ready to register, I’d be happy to help.

Learn more at the Trademark Academy

Ready to File? Start your application here.

 

A Concierge Legal Experience:

With over two decades of trademark experience, we’ve guided businesses ranging from first-time founders to global sellers. Our approach is never one-size-fits-all. Whether you’re launching a brand or enforcing your rights, we’ll walk you through every step—from clearance to registration to real-world strategy—with care, clarity, and discretion. Our clients know us not just for our results, but for how we make the process feel: calm, protected, and smart.