Most brand owners check for similar trademarks once a quarter, or once a year, or never. Then a lookalike filing registers and they hear about it from a customer.
The hard part is timing. The window to act opens when the other side publishes, not when you happen to be looking.
This is not legal advice. A lawyer handles opposition and the arguments. A watch only tells you a filing exists, early enough that counsel still has room to move.
Why the frequency matters more than the check itself
Almost every trademark office gives you a window after a conflicting mark is published. Miss it and your options get worse and more expensive.
Here are the real windows.
- United States. 30 days from publication in the Official Gazette to file an opposition.
- European Union. 3 months from publication of the EU application.
- Many national offices. Similar short windows of 2 to 3 months.
That is the whole game. If you look every 90 days, a filing published the day after your last check can hit its deadline before your next one. You do not need to be fast at opposing. You need to be fast at noticing.
What a check should actually cover
If you are doing this yourself, a single exact search of your own name is not enough.
- Exact matches. The easy ones.
- Near misses. One letter swapped, doubled letters, a lookalike character.
- Sound-alikes. Names that read differently but sound the same out loud.
- Adjacent classes. A mark in a class next to your goods can still cause confusion.
- Other scripts and translations. A name that means the same thing in another language.
- Lapsed and revived applications. A mark that died can be refiled.
Run that across every country you actually sell in, not just your home register. A filing in one market can block your plan to enter it later.
The cadence that fits the risk
There is no single number, but here is a sane way to think about it.
- Core brand, core markets. Watch daily. The exposure is your whole business.
- Secondary brands. Weekly is usually enough.
- Long-tail marks you rarely enforce. Monthly, or let them go.
Daily beats weekly for one reason. A published filing has a fixed clock, and you cannot choose when it started. A daily scan turns a surprise into a routine email.
What manual watching really costs
Doing it by hand across a handful of countries sounds cheap until you count the hours. One register, one class, once a month is fine. Ten countries, three classes, four near-miss patterns, every week, is a part-time job nobody wants.
Free register alert emails exist, and they help. They also have gaps. Coverage varies by office, near-miss matching is often exact-string only, and nothing tells you which of the hits actually matters to your business. You still do the triage.
Where a watch sits next to your lawyer
A monitoring service is not a law firm, and it should not pretend to be one. What it does is narrow the field. It scans new filings, flags the ones that resemble your brand, and puts a date on them so you can bring the real ones to counsel while the window is still open.
That is why we built IP Defender as the watch, not the lawyer. 5 AI watch agents and 11 detection layers scan new trademark filings across 55 territories. You pay per use, from $0.30 a day for markets like Czechia, Poland and the UK, up to $0.40 a day for the US and Germany. No annual contract, no seat fee.
The point is simple. Filing is a snapshot. Noticing a lookalike on the day it publishes is what keeps that snapshot worth something.
If you want the side by side, our comparison page shows how a standing watch differs from filing once and hoping nobody copies the name.