Trademark vs DBA vs LLC Name - Brand Protection for Trade Businesses

Why this matters

Most trade business owners think filing an LLC ("Acme Plumbing LLC") protects their business name. It does not. The state's LLC filing only prevents another company from forming an LLC with that exact name in that ONE state. It does not stop a competitor in the next county from using the same name as a DBA, doesn't stop someone in another state from forming an identical LLC, doesn't stop a national franchise from rolling into your market with a confusingly similar mark, and doesn't give you any legal mechanism to remove an infringer from Google Ads, social media, or domain registries. After years of building brand equity, finding out a competitor 30 miles away has been operating as "Acme Plumbing Co." for the past two years (and is now ranking ahead of you in Google) is the moment most contractors learn the difference between LLC formation, DBA registration, common-law trademark, and federal trademark registration. The cost difference between the strongest protection (federal trademark) and no protection is small enough that the math overwhelmingly favors filing. This article walks through the layers of brand protection, what each does, what each costs, and when to invest in which.

The four layers of name protection

Layer 1 - LLC or Corporation name. Filed with the state's Secretary of State (or Department of State / Corporations Division). Cost: $50 to $800 (Delaware $90 + annual franchise tax, California minimum $800 LLC franchise tax annually, most other states $50-$300 to file plus $25-$100 annual report). Protection: ONLY against another entity registering an identical name as an LLC/corp in that one state. Does NOT protect against DBAs, against unregistered businesses, against entities in other states.

Layer 2 - DBA / Fictitious Business Name / Assumed Name. Filed with the county or state (varies by state). Cost: $10-$100 typically. Purpose: legal disclosure that "Mike Smith is doing business as Smith Plumbing." Required in most jurisdictions if your operating name differs from your legal name (your personal name as a sole proprietor or the LLC's legal name). Protection: in most states, ZERO. A DBA filing is a disclosure, not a brand right. A few states (CA among them) grant a limited priority right to the first DBA filer in a county, but enforcement is weak.

Layer 3 - Common-law trademark. Created automatically when you USE a mark in commerce. No filing required. The trademark right attaches to your geographic area of actual use. Strong evidence: marketing materials, invoices, signage, vehicle wraps, online presence, all dated. Protection: enforceable in courts but limited to your area of use, narrow geographic scope, hard to prove priority. Helpful but not enough for any business operating in more than a single neighborhood.

Layer 4 - Federal trademark registration with USPTO. Filed under the Lanham Act (15 USC Sections 1051 et seq.). Cost: $250-$350 per class for the basic TEAS application, plus typically $1,500-$3,500 in attorney fees for proper preparation. Protection: nationwide constructive priority from the filing date (even before approval), legal presumption of validity, ability to use the (R) symbol, statutory damages and attorney fees available in infringement suits, federal court jurisdiction, basis for filing in foreign jurisdictions, and brand recovery tools at Google, Amazon, social media, and domain registrars that respond ONLY to federally registered marks. Strongest protection available.

A regional trade business with serious growth ambition should plan for Layer 4 (federal trademark) within 12-24 months of brand stabilization. The cost is recoverable in a single infringement situation.

The four-step trademark clearance and filing process

Step 1: Clearance search. Before filing, search for conflicting marks:

• USPTO TESS database (https://tmsearch.uspto.gov) - free, the authoritative federal-registry search.
• State trademark registries (each Secretary of State maintains; quality varies).
• Common-law search: Google for the proposed mark + your industry, search business directories, social media, BBB, Yelp.
• Domain name search (GoDaddy, Namecheap availability check).

A clear search means no conflicting marks for similar goods/services. A conflicting mark requires either (a) abandoning the proposed mark, (b) showing the conflict is in a sufficiently different field, or (c) acquiring rights from the prior owner (license, assignment, coexistence agreement).

DIY clearance is risky for any mark you intend to invest in. A flat-fee trademark attorney clearance catches conflicts that an untrained search will miss and provides legal opinion if you need to defend the mark later; the typical flat fee is a fraction of what a single Office Action response can cost later.

Step 2: File the application. The USPTO TEAS Plus application is the cheapest path ($250 per class as of 2024). Requires:

• Owner identity (the LLC or individual).
• Mark drawing (word mark, design mark, or combination).
• Goods/services description matching USPTO's pre-approved Trademark ID Manual.
• Filing basis: Section 1(a) actual use in commerce (with specimen of use), or Section 1(b) intent-to-use (you file before using the mark; you have up to 36 months after approval to begin use and file the Statement of Use, with extension fees).
• Specimen of use (photograph of mark on actual goods/services - a website screenshot, a service truck photo, an invoice with the mark, etc.).

Federal trademark classes are 45 categories. Most trade businesses fall into Class 37 (Building construction; repair; installation services - includes plumbing, HVAC, electrical, roofing, painting, carpentry installation services). Some go in Class 35 (Advertising and business services) for franchising. Some in Class 40 (Treatment of materials) for fabrication. Multiple classes can be filed in one application at additional per-class fees.

References

• 15 USC Sections 1051-1141n (Lanham Act, the federal trademark statute).
• 15 USC Section 1114 (Infringement of registered marks - civil action).
• 15 USC Section 1125 (False designations of origin; cybersquatting under Section 1125(d), Anticybersquatting Consumer Protection Act).
• 15 USC Section 1117 (Recovery for violations - damages, attorney fees, treble damages for counterfeiting).
• USPTO Trademark Manual of Examining Procedure (TMEP), current edition - the authoritative procedural reference.
• 37 CFR Part 2 (Trademark Rules of Practice) and Part 7 (Madrid Protocol implementation).
• USPTO TEAS application portal (https://www.uspto.gov/trademarks); TESS search system (https://tmsearch.uspto.gov).
• UDRP (Uniform Domain-Name Dispute-Resolution Policy) administered by ICANN; arbitration providers include WIPO (https://www.wipo.int/amc/en/domains) and NAF.
• International Class system (Nice Agreement Classification of Goods and Services), 12th edition - basis for the 45 trademark classes used at USPTO.
• State Secretary of State business name registries (each state's official portal) for LLC and DBA filings; varies by state.