February 22, 2026
What to Do When Someone Files a Trademark Similar to Yours
You set up monitoring, and now you have received an alert: someone just filed a trademark application that looks similar to your brand name. Here is what to do next — and how to think about the threat level.
First: assess the actual risk
Not every similar-looking filing is a real threat. Before you do anything, ask three questions:
- How similar is the name? Identical or near-identical is serious. Vaguely similar may not be.
- Do the product categories overlap? A conflicting mark in an unrelated industry is usually not actionable against you.
- Who filed it? A large company protecting a known brand is a different situation than an individual filing a barely-related application.
The opposition window
After a trademark application is published for opposition by the USPTO, there is a 30-day window in which third parties can file an opposition. If you believe the new application would harm your existing rights, this is your formal opportunity to challenge it.
Missing this window does not eliminate all options, but it does make things significantly harder and more expensive. This is why catching filings early matters — the earlier you know, the more options you have.
Your options
1. Do nothing. If the overlap is minimal or the categories do not conflict with your business, monitoring and taking no action may be the right call. Document your reasoning.
2. Consult a trademark attorney. For anything that looks like a genuine threat, this is the right first move. A qualified attorney can assess the actual conflict risk, advise on your existing rights, and recommend whether to oppose.
3. File an opposition. If an attorney advises it, you can file an opposition with the USPTO Trademark Trial and Appeal Board (TTAB) during the 30-day opposition window. This is a formal legal proceeding — you almost certainly want an attorney for this.
4. Contact the applicant directly. Sometimes a conversation is faster and cheaper than a formal opposition. This works best when the conflict appears unintentional and the parties operate in genuinely different markets.
Protect yourself going forward
If you have not already filed for your own trademark, this is a good moment to consider it. Having a registered trademark strengthens your position considerably when challenging a competing application.
And regardless of what you decide about this particular filing, make sure you have ongoing monitoring in place. The best time to catch a conflict is as early as possible — before the applicant builds brand equity, before they get registered, and while you still have the most options available.
HeroMark catches conflicts early
We check the USPTO database daily and alert you the moment a potentially conflicting application is filed — giving you maximum time to act. Start monitoring free for 14 days →
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