Common Law Trademark Rights: Why Federal Registration Is Not the Whole Story
Many business owners assume federal trademark registration with the US Patent and Trademark Office (USPTO) provides complete brand protection. That assumption often leads to costly mistakes.
Common law trademark rights continue to exist alongside federal trademark statutes. Understanding this distinction is critical for protecting your brand and avoiding infringement claims.
This knowledge also explains why a pre-application trademark clearance search matters. In short, the Federal registration alone does not determine who owns a trademark. The key question is who used the trademark in commerce first. Regardless of any trademark registration.
We’ll discuss this in greater detail below.
Understanding Common Law and Statutory Law in the United States
The United States recognizes two primary sources of law: statutory law and “common law.” Statutory law consists of written rules passed by legislatures and signed into law. These statutes include federal trademark laws and USPTO regulations.
Common law, in contrast, develops through judicial decisions. That is, judges issue rulings. Those rulings and court orders include new or changed rules. Thus, judges create binding legal principles when resolving disputes. These judicially created rules the “common law.”
How Common Law Trademark Rights Actually Work
Common law trademark rights arise from use, not registration with the USPTO. The United States is a “first to use” jurisdiction rather when it comes to trademark registration. That is, the first party to use a mark in interstate commerce has the claim to its ownership.
Filing a trademark application does not create ownership by itself, in other words. Prior users may already hold enforceable rights due to their use prior to yours (if that is the case), even if they have not .
You can receive a federal trademark registration and still infringe another party’s rights, under certain circumstances. That possible risk is surprising news to most!
Why a Trademark Clearance Search Is Essential
The solution to the risk of unknown prior users of a trademark is a pre-application clearance search. This is a professional, algorithmic search conducted under the experienced eye of a skilled Michigan trademark attorney.
Many applicants rely on Google searches or the USPTO’s TESS database. However, those tools alone provide an incomplete picture. For instance, TESS only shows federally registered trademarks, dead prior registrations, or pending applications. It does not reveal unregistered marks in use in interstate commerce. Those are the trademarks that may be enforceable under the common law.
Common law users can challenge later registrations through cancellation proceedings before the USPTO’s TTAB (Trademark Trial and Appeals Board).
A professional trademark clearance search looks beyond federal records. It identifies risks before filing, not just after rejection or the commencement of litigation.
What a Proper Trademark Clearance Search Includes
A comprehensive trademark clearance search requires legal analysis. It cannot be automated reliably.
An experienced trademark attorney reviews results from multiple sources, including:
- Federal trademark records
- State trademark registries
- Business entity databases
- Domain name registrations
- Websites and online marketplaces
- Social media platforms
Design marks, word marks, and sound and other “non-traditional” trademarks require different search strategies. Evaluating similarity requires legal judgment born from experience. It can often be as much art as science!
How Noble Path Legal PLLC Protects Clients from Common Law Risks
Noble Path Legal PLLC conducts comprehensive trademark clearance searches for clients nationwide. The firm evaluates both statutory and common law risks so that our clients can consider all possible issues before entering into the often year-long application process.
When risks exist, we explain them clearly and strategically—and in writing. Clients can then proceed with full awareness or consider re-branding.
This approach often saves months of delay and significant expense. It also prevents investment in trademarks that cannot be enforced.
Common Law Trademark Rights: The Bottom Line
Common law trademark rights must be considered before filing a US trademark application. Ignoring the possibility that someone, somewhere in the United States has prior use over yours can endanger your brand’s commercial viability.
Thus, filing a trademark application without legal guidance leaves hidden risks undiscovered. Discount, online trademark-filing services provide no legal analysis or post-filing defense, should your application encounter trouble after filing.
Only a licensed attorney can advise on infringement risk and argue before the USPTO. That legal judgment cannot be outsourced or automated, and is that judgment you pay for when retaining an attorney.
Noble Path Legal PLLC is a boutique trademark law firm based in Metro Detroit. We assist businesses with clearance searches, registrations, renewals, monitoring, and Office Action responses.
We offer virtual consultations and premium client service. Our focus remains protecting brands with precision and foresight, and providing friendly service every step of the way.
Click the “Register Your Trademark” button below to schedule your consultation and begin your brand protection journey.