The Supplemental Register: What You Need to Know

The Supplemental Register is a secondary register maintained by the USPTO under the Lanham Act. It is available to and utilized by marks that are already commercially used but do not meet the distinctiveness requirements for the Principal Register. This includes descriptive marks, surnames, geographic terms, and certain other categories of marks that are not inherently distinctive.

For some applicants, the Supplemental Register is a lower tier of full trademark protection, but for others, it’s more of a staging ground for descriptive marks. The Supplemental Register allows these marks to build a sufficient commercial use history to support a new application to the Principal Register. When business owners treat the Supplemental Register as the final destination rather than an interim stop, they discover its limitations when a dispute arises.

Registration on the Supplemental Register does provide some practical benefits that shouldn’t be overlooked.

For one, the registrant may use the ® symbol next to their mark in commercial use. The mark also appears in the USPTO database, which means an examining attorney can cite it against a later application for a confusingly similar mark under Section 2(d). This deters some confusingly similar third-party filings, though the Examiner may exercise more discretion in citing them, and the protection is more limited than it would be for a Principal Register mark, since Supplemental Register marks are considered merely descriptive. Registration on the Supplemental Register can also serve as a basis for trademark filings in certain foreign jurisdictions that require a domestic registration as a prerequisite.

Furthermore, federal court enforcement is available to Supplemental Register owners, including claims for infringement and unfair competition. However, the burden in any such proceeding falls on the owner to prove that the mark actually functions as a source identifier. That is a substantially different process from enforcing a Principal Register mark, where validity and ownership are presumed.

The gap between the two registers is more significant than it might seem at first. Mainly, a Supplemental Register registration carries none of the legal presumptions that make a Principal Register mark enforceable.

There is no presumption that the mark is valid, that the registrant owns it exclusively, or that those rights apply nationwide. Each of those must be proven independently in any dispute. The mark remains open to challenge at any time on the basis that it lacks distinctiveness. Incontestable status under Section 15, which provides substantial additional protection to Principal Register marks after five years of continuous use, is entirely unavailable to marks on the Supplemental Register.

Additionally, a Supplemental Register registration cannot be recorded with the US Customs and Border Protection to block the importation of infringing goods. That tool is reserved for Principal Register marks.

The primary benefit of the Supplemental Register is that the time a brand spends there contributes to a future Section 2(f) claim. Substantially exclusive and continuous use of a mark in commerce for five years may be submitted as prima facie evidence of acquired distinctiveness when applying for Principal Register registration. A Supplemental Register registration provides documented evidence of that use period.

This evidence can then be used when moving a descriptive mark to the Principal Register, but only when filing a new application with a Section 2(f) claim of acquired distinctiveness. Examiners review the new application independently, and approval is not guaranteed. The five-year use threshold does help in appropriate cases, but the USPTO may still require additional evidence, and the burden of said evidence increases in proportion to the mark's descriptiveness. When going through this process, business owners should keep track of and document sales figures, advertising expenditures, consumer surveys, media coverage, and declarations from relevant trade members. These are all forms of evidence the examining attorney may expect.

Applicants should ideally file the new Principal application while the Supplemental registration is still active. In that scenario, if the new application is refused, the existing Supplemental registration will continue to provide its limited protections and deter any identical or confusingly similar marks from being registered.

One procedural limitation that is frequently overlooked is that intent-to-use applications cannot be filed directly on the Supplemental Register. This is because the Supplemental Register requires actual use in commerce as a condition of registration. The rationale for placing a mark there is that the owner has been using it in commerce and needs time to build secondary meaning. A mark with no use history has nothing to document and no distinctiveness-building period to protect. 

An ITU applicant whose mark is found descriptive during examination cannot amend to the Supplemental Register until actual use has been demonstrated through the filing of an Allegation of Use. Applicants who file on an intent-to-use basis and receive a descriptiveness refusal must begin using the mark in commerce before the Supplemental Register option becomes available. 

Trademark owners should note that amending to the Supplemental Register is not their only option for overcoming a descriptiveness refusal. In fact, often it is not the best option. 

For example, when a descriptive mark borders on being suggestive, applicants should consider contesting the refusal on those grounds. Compared to an amendment to the Supplemental Register, a successful Office Action response would result in a Principal registration, but without the constraints and the 5-year timeline.

For other applicants whose marks are clearly descriptive, modifying the name to introduce more distinctive elements may be a more efficient path than spending years on the Supplemental Register. One added distinctive element, along with a new filing, might be all they need to be added to the Principal Register.  

A similarly strong and popular strategy is filing a new design mark application with a logo that incorporates descriptive text, but has distinctive visual elements to fall back on. In some cases, this kind of application can achieve Principal Register registration, whereas a word mark alone would not.

For businesses selling on Amazon, the Supplemental Register is particularly ill-suited, since enrollment into Amazon’s Brand Registry is not possible. Only marks registered in the Principal Register qualify for enrollment, and this is important because ABR access is what unlocks Amazon's brand protection tools, including enhanced content, counterfeit reporting, and search and reporting features. Businesses that rely on Amazon as a primary sales channel and attempt to meet Brand Registry requirements with a Supplemental registration will find that it does not meet the threshold, regardless of how long the mark has been registered.

The appropriate choice depends on the specific mark, the strength of the descriptiveness refusal, the applicant's commercial timeline, and the resources available to pursue the application. Each path carries different costs, timelines, and levels of protection.

Not by amendment. Moving to the Principal Register typically requires filing a new application with a claim of acquired distinctiveness under Section 2(f). That application is examined independently, and approval is not automatic. Filing the new application while the Supplemental registration remains active is recommended to ensure the existing registration continues to provide limited protection if the new application is refused.

It provides limited deterrence. The mark appears in the USPTO database, and an examining attorney can cite it against a confusingly similar later application. However, because Supplemental Register marks are considered merely descriptive, they are less likely to be found confusingly similar unless the marks are nearly identical. The registration does not carry the presumptions of validity or ownership that make enforcement straightforward.

No. The Supplemental Register requires actual use in commerce. An ITU applicant who receives a descriptiveness refusal during examination cannot amend to the Supplemental Register until actual use has been demonstrated through the filing of an Allegation of Use.