A Puerto Rico trademark search means checking two separate databases: the federal register maintained by the U.S. Patent and Trademark Office (USPTO) and the local register maintained by the Puerto Rico Department of State. Because Puerto Rico is a U.S. territory, federally registered marks are enforceable on the island, but the Commonwealth also runs its own registration system for marks used locally.1Government of Puerto Rico. Registration of Trademarks and Commercial Names Skip either one and you leave a gap that can surface as an infringement dispute after you’ve already paid for signage, packaging, and marketing.
A federal mark generally still has to be shown in actual use in Puerto Rico, or to have built a reputation there, before a local court will grant injunctive relief.2Federal Bar Association. Patents in Paradise, Tropical Trademarks, and Caribbean Copyrights A locally registered mark, meanwhile, may never appear in the USPTO database at all. Both searches are free, and both are necessary.
Searching the USPTO Database
The USPTO retired its legacy TESS system in November 2023 and replaced it with a cloud-based search tool at tmsearch.uspto.gov.3United States Patent and Trademark Office. Retiring TESS: What to Know About the New Trademark Search System4United States Patent and Trademark Office. Trademark Search A plain keyword query is the starting point, but it will miss phonetic near-matches, design-only logos, and marks in adjacent goods categories. Field tags fix that. In the current system, tags are written in all caps followed by a colon, with the search term in lowercase.5United States Patent and Trademark Office. Federal Trademark Searching: Field Tag Searching
Three tags do most of the work:
- CM (Combined Mark) searches word mark, pseudo mark, translation, and transliteration fields at once.
CM:fiestapulls every mark containing that word. - DC (Design Code) searches logo and design elements by numeric classification. Look up the code in the USPTO’s Design Search Code Manual and enter it as
DC:26.17.13. This is how you catch visually similar logos when the words differ. - IC (International Class) limits results to a specific class of goods or services.
IC:025returns only marks in clothing. Identical marks can legally coexist in unrelated classes, so filtering by class keeps your results relevant.
Boolean Operators and Wildcards
The system accepts AND, OR, and NOT to combine or exclude terms. ADJ finds terms next to each other in order, and ADJ3 allows up to three words between them.6United States Patent and Trademark Office. Advanced Trademark Searching Wildcards catch spelling variations: the dollar sign ($) replaces unlimited characters anywhere in a word, and the question mark (?) replaces exactly one. A search for CM:c$t returns “cat,” “coat,” “cut,” and many others.
This is where do-it-yourself searchers usually come up short. Run your mark, then run its likely misspellings, its shortened forms, and any word that sounds like it. If someone could hear your mark and type something else into a browser, test that version too.
Searching the Puerto Rico Local Registry
The Puerto Rico Department of State operates a free online portal for both trademarks and trade names registered under local law.7Puerto Rico Department of State. Trademarks Search8Puerto Rico Department of State. Registry of Trademarks and Trade Names You can filter by owner name, goods or services description, international class, filing date range, application status, and mark type.
Two quirks are worth knowing. For single-character or abbreviation searches, put the query in quotation marks, following the portal’s own examples of “A” or “AI.” If the mark uses accented characters, include the accents; the search treats accented and unaccented letters as different.7Puerto Rico Department of State. Trademarks Search
The local registry also lists trade names, which are the names businesses actually operate under. A trade name conflict won’t automatically block a trademark registration, but it can produce customer confusion in the local market and open the door to an unfair-competition claim.
Looking Beyond the Registries
A business can build enforceable rights in a mark simply by using it in commerce, without ever registering it anywhere. Those rights don’t show up in either database, so a thorough clearance goes further than the two official portals.
Check the Puerto Rico Department of State’s Registry of Corporations and Other Legal Entities, a free online database of corporations, LLCs, partnerships, and other entities registered in the Commonwealth.9Department of State of the Government of Puerto Rico. Registry of Corporations and Other Legal Entities A company name is not the same as a trademark, but an entity operating under a confusingly similar name is a signal worth chasing down before you commit.
Then look at web domains, general search engines, social media accounts, and local business directories. A competitor already trading under your proposed mark on Instagram and Google Maps has a stronger position than you might expect from the absence of any registration. You are not trying to catalog every mention on the internet; you are looking for anyone actively doing business under a similar name in a market that overlaps with yours.
When to Bring in a Professional
Running the searches yourself costs nothing but time. The harder part is judging what turns up. Two marks do not have to be identical to create a legal conflict. Phonetic similarity, visual resemblance in logos, overlapping goods categories, and translation equivalents between English and Spanish all feed into whether marks are treated as confusingly similar.
Professional trademark search firms generally charge between $300 and $1,000 for a comprehensive clearance search with a written opinion, depending on the complexity of the mark and the number of classes involved. Set against the cost of rebranding after a cease-and-desist letter, or defending an opposition proceeding, that fee is modest. If your mark anchors a significant business investment, paying for a professional opinion before you launch is the more cautious path.