Why Authors Should Check Trademarks
A US trademark holder can force Amazon to take down your book listing — and a series name you've built a brand on can be lost overnight. Pen names, series names, and the titles of multi-book series are the most common conflict points. Single book titles generally can't be trademarked, but a name that overlaps with a registered TV show, franchise, or course brand still gets you removed.
Avoid Takedowns
Before you publish
Class 16 + 41
Highlighted as high-risk
Public USPTO Data
Mirrored, not scraped
How to Use This Tool
- 1Type a title, series name, or pen name (2–80 characters)
- 2Read the verdict badge (Likely safe / Possible / High risk)
- 3Review the matches — Class 16 (printed pubs) and Class 41 (entertainment) are highlighted
- 4Click through to the USPTO record to confirm status, owner, and goods/services
Frequently Asked Questions
Is this legal advice?
No. This tool searches the public US trademark database and gives you a starting point. A trademark attorney can run a comprehensive clearance search, evaluate likelihood-of-confusion factors, and advise you on risk in a way an automated tool cannot. For high-stakes uses (a series name you plan to build a brand around, a pen name you'll use for years), get a real opinion.
What about trademarks outside the United States?
This tool only searches USPTO records. If you publish or sell internationally, you should also check the trademark registry in each country where you do significant business — the UK Intellectual Property Office, EUIPO for the European Union, CIPO in Canada, IP Australia, and so on. WIPO's Madrid Monitor covers international registrations through the Madrid System.
Which trademark classes matter for book authors?
Class 16 (printed publications) is the primary class for books. Class 41 (entertainment and educational services) often covers franchises with movies, courses, or events tied to a book series. Class 9 covers e-books, apps, and downloadable content. A registered mark in one of these classes that closely matches your title is the highest-risk scenario.
What's the difference between a Live and Dead trademark?
Live marks are currently active — registered, in use, or actively being prosecuted. Dead marks have been abandoned, cancelled, or expired and are no longer enforceable as trademarks (though using them might still trigger consumer-confusion claims). Dead marks lower your risk score, but a "Dead" status on the USPTO is not blanket permission to use the name.
Why didn't my exact title show up?
A few reasons: (1) the title may not be registered as a trademark — book titles are notoriously hard to register because a single book title generally isn't protectable as a TM. Series names are more likely to be registered. (2) Our search uses public mirrors of USPTO data and may not include very recent filings. Always verify directly on the USPTO before relying on a "no results" verdict.
Can I trademark my book title?
Single book titles generally cannot be trademarked because the USPTO views them as describing the work itself. Series names (Harry Potter, Magic Tree House, Dune) and pen names that have built a recognizable brand can be registered. If you're planning a multi-book series, registering the series name in Class 16 is a common defensive move.
How does the risk score work?
Each match earns points: an exact phrase match adds 10, a partial match adds 5. Filings in Class 16 add 5 more, Class 41 adds 3. Live marks add 5; Dead marks subtract 5. Marks registered 5+ years ago add 2 (well-established brands are riskier). Total scores of 15+ are flagged High Risk; 5–14 are Possible Conflict; below 5 is Likely Safe. The score is a heuristic, not a legal opinion.
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