TM vs SM vs ®: The Complete Guide
Three symbols, three different meanings.
TM, SM and ® get confused constantly — sometimes with real consequences. Here's a clear, complete comparison.
| Symbol | Full meaning | Applies to | Requires registration? |
|---|---|---|---|
| TM | Trademark | Goods | No |
| SM | Service mark | Services | No |
| ® | Registered trademark | Goods or services | Yes — federal registration required |
TM: claiming a mark for goods
Used for physical products. Can be used even before filing an application, as a way of signaling your claim to the mark while you build your brand.
SM: claiming a mark for services
Works exactly like TM, but for services rather than physical goods — consulting, software-as-a-service, education, and similar offerings.
®: only after registration
The most misunderstood of the three. You should not use ® merely because you've filed an application — it's reserved for marks that have actually completed federal registration with the USPTO.
Using ® before your mark is actually registered is a common and avoidable mistake. If you're not sure whether your mark qualifies, ask us before adding the symbol to your packaging or marketing materials.
Practical takeaway
- Just launched your brand? Use TM (goods) or SM (services).
- Filed your application but not yet registered? Keep using TM/SM.
- Registration granted? You can now use ®.