Trademark Law

A trademark is any word, name, symbol, device, or combination thereof that identifies the source of goods or services and distinguishes them from competitors. Federal trademark law under the Lanham Act (15 U.S.C. §§ 1051–1141, 1946) provides two layers of protection: common law rights arise automatically from first commercial use of a mark, without registration; federal registration with the USPTO adds nationwide constructive notice, a legal presumption of ownership and validity, the right to use ®, and access to federal court remedies and Customs recordation (to block infringing imports). Approximately 2.7 million active federal registrations exist as of 2026, with about 700,000 applications filed annually. Registration terms are 10 years, renewable indefinitely with proof of continued use. The core infringement standard is likelihood of confusion — whether an ordinary consumer might confuse the defendant's mark with the plaintiff's as to source, sponsorship, or affiliation. Trademark rights can be lost through genericide (when a mark becomes the generic name for the product — "aspirin," "escalator," and "zipper" were all once trademarks) or abandonment (nonuse without intent to resume). Unlike patents, a trademark never expires as long as it remains in use and is maintained — making a strong trademark potentially the most durable form of intellectual property a business can own.

Current Law (2026)

Legal Authority

• 15 U.S.C. § 1051 — Registration on the Principal Register (owner of a trademark used in commerce may register with USPTO; application requirements; intent-to-use applications)
• 15 U.S.C. § 1052 — Registrability (marks that are not registrable: immoral/scandalous, deceptive, confusingly similar to existing marks, merely descriptive or surname, functional; geographic terms)
• 15 U.S.C. § 1057 — Certificates of registration (registration is prima facie evidence of validity, ownership, and exclusive right to use the mark in commerce)
• 15 U.S.C. § 1065 — Incontestability (after 5 years of continuous use following registration, a mark becomes "incontestable" — conclusive evidence of exclusive right, subject to limited defenses)
• 15 U.S.C. § 1114 — Infringement of registered marks (use in commerce of a reproduction, copy, or colorable imitation of a registered mark that is likely to cause confusion, mistake, or deception)
• 15 U.S.C. § 1125(a) — Section 43(a) — false designation of origin (protects unregistered marks; any false or misleading representation of fact in commercial advertising that misrepresents the nature, characteristics, qualities, or geographic origin of goods/services)
• 15 U.S.C. § 1125(c) — Dilution (owners of famous marks may prevent uses that blur the distinctiveness or tarnish the reputation of the famous mark, even without likelihood of confusion)
• 15 U.S.C. § 1125(d) — Cybersquatting (bad-faith registration of domain names identical or confusingly similar to trademarks; damages up to $100,000 per domain)
• 15 U.S.C. § 1116-1118 — Remedies (injunctions; damages — actual damages or defendant's profits; treble damages and attorney's fees in exceptional cases; destruction of infringing articles)

Implementing Regulations

• 37 CFR Part 2 — USPTO Trademark Rules of Practice (150 sections — the complete procedural code for trademark prosecution, maintenance, and inter partes proceedings before the Trademark Trial and Appeal Board):

  • Applications and prosecution: applicants file through the Trademark Electronic Application System (TEAS); a trademark examining attorney reviews and may issue office actions; foreign applicants must be represented by a U.S.-licensed attorney (§ 2.11); responses to office actions must be filed within the specified deadline or the application goes abandoned
  • Opposition proceedings (§§ 2.101–2.135): after a mark is approved and published in the Official Gazette, any party that believes they would be damaged by the registration has 30 days to file a notice of opposition with the TTAB (§ 2.101); the time to oppose can be extended on request (§ 2.102); the opposition must state grounds and allege damage; the applicant files an answer or the proceeding may be decided by default (§ 2.106); TTAB inter partes proceedings follow Federal Rules of Civil Procedure and Federal Rules of Evidence, including discovery, testimony periods, and briefing schedules (§§ 2.116, 2.120–2.128); oral argument is available on request (§ 2.129)
  • Cancellation proceedings (§§ 2.111–2.135): any person who believes they are or will be damaged by an existing registration may petition to cancel; no time limit for cancellations based on genericness, abandonment, or fraud; registered marks more than 5 years old (incontestable) can only be cancelled on specific grounds (§§ 14–15 of the Lanham Act)
  • Ex parte appeals (§§ 2.141–2.149): after a final refusal by a trademark examining attorney, the applicant may appeal to the TTAB (§ 2.141); from the TTAB, further appeal goes to the Federal Circuit or to a U.S. district court (§ 2.145); third parties may file letters of protest against pending applications to bring relevant evidence to the examining attorney's attention (§ 2.149)
  • Section 8 use affidavit and Section 15 incontestability (§§ 2.160–2.168): to keep a registration alive, the owner must file a Section 8 declaration of continued use between years 5 and 6 (and every 10 years thereafter) (§ 2.160); a Section 15 affidavit filed after 5 years of substantially exclusive and continuous use can render the mark incontestable — shielding it from certain invalidity challenges (§ 2.167); the two filings can be combined; failure to file the Section 8 declaration results in automatic cancellation (§ 2.161)
  • Registration maintenance: registrations are renewable every 10 years (Section 9 renewal); a combined Section 8/9 filing is routine; assignment of ownership requires recordation with the USPTO for the mark to follow the business sale (§ 2.171); the owner may apply to amend a registration or disclaim a non-distinctive element (§ 2.173)

• 37 CFR Part 7 — Madrid Protocol International Trademark Registration: the USPTO's implementing rules for the Madrid System — the WIPO-administered treaty mechanism allowing U.S. trademark owners to seek trademark protection in up to 130+ countries through a single international application filed through the USPTO. Key provisions:

  • § 7.11 — International application filed through USPTO: a U.S. applicant must file their international application through TEAS to the USPTO, which certifies and forwards it to WIPO's International Bureau; the U.S. application or registration that serves as the "basic mark" must contain the identical mark, goods/services, and owner as the international application; the filing fee is split — a USPTO certification fee plus WIPO's international fees (which vary by country and mark type); the application date at the International Bureau is the filing date for international priority purposes
  • § 7.12–7.13 — Color claims and USPTO certification: if the basic mark includes a color claim, the international application must include the same color claim; the USPTO certifies to WIPO that the international application corresponds to the basic application or registration; USPTO certification is required before WIPO will process the application — a technical certification step the applicant cannot bypass
  • § 7.14 — Correcting irregularities: if WIPO finds irregularities (missing fees, inconsistencies with the basic mark, formal defects), it notifies the USPTO and sets a correction period; the applicant must respond within the specified time or WIPO will treat the application as abandoned; unlike USPTO office actions, WIPO irregularity notices go through the USPTO as intermediary — direct communication with WIPO is not available through this channel
  • § 7.21 — Subsequent designation: after an international registration is established, the owner can add new countries ("subsequent designation") either directly at WIPO or through the USPTO; a subsequent designation extends protection to additional member countries at a reduced fee compared to a new international application; the ability to add countries to an existing international registration years after original filing is a key strategic feature of the Madrid System
  • §§ 7.22–7.24 — Recording changes to international registration: assignments, name changes, and address changes must generally be recorded at WIPO (not USPTO) for the international registration; but if the assignment or change affects a U.S. extension of protection, the USPTO must also be updated; the split recording obligation (some changes at WIPO, some at USPTO, some at both) is a compliance trap for trademark owners managing large international portfolios
  • §§ 7.30–7.37 — Extension of protection to the United States (§ 66 applications): foreign trademark owners can use the Madrid System to seek U.S. protection via a Section 66(a) application (an international registration designating the U.S.); these are examined like regular U.S. trademark applications, but with important differences: the U.S. protection is dependent on the basic mark for the first 5 years — if the basic mark is cancelled, modified, or expires in the home country during that period, the U.S. registration falls too ("central attack"); after 5 years, the U.S. registration becomes independent; § 66(a) registrants cannot use multi-class applications and face strict goods/services restriction rules

  The Madrid System dramatically simplifies the mechanics of multinational trademark protection — one application, one language (English, French, or Spanish), one currency (Swiss francs), one renewal process — but it introduces central attack vulnerability during the first 5 years and restricts certain U.S. prosecution strategies (narrowing of goods, filing of affidavits of use for the U.S. extension) that require coordination between U.S. trademark counsel and the international registration holder. For U.S. companies building global brands, the Madrid System is now the dominant strategy for securing international trademark rights, used in approximately 75% of new trademark filings in most major markets.

How It Works

Trademark law protects brand identifiers — words, logos, slogans, colors, sounds, and product configurations that consumers associate with a particular source of goods or services. Unlike patents and copyrights, trademarks can last forever as long as they remain in use and maintain distinctiveness.

A trademark can be any word, name, symbol, device, or combination that identifies and distinguishes a source of goods or services — brand names (Apple, Nike), logos (the Nike swoosh), slogans ("Just Do It"), trade dress (the Coca-Cola bottle shape), colors (Tiffany blue, UPS brown), sounds (NBC chimes), and even scents in rare cases. The core requirement is distinctiveness: the mark must serve as a source identifier, not merely describe the product. Marks fall on a spectrum from strongest to weakest — fanciful (invented words like Xerox, Kodak), arbitrary (real words unconnected to the product, like Apple for computers), suggestive (hinting at qualities but requiring imagination, like Netflix), descriptive (protectable only after acquiring "secondary meaning" in consumers' minds), and generic (the common name for the product, never protectable). Marks can fall off the spectrum entirely by becoming generic through widespread misuse — "escalator," "aspirin," and "thermos" were once trademarks. Trademark rights in the U.S. arise from use in commerce, not registration — a business that uses a distinctive mark acquires common law rights in its geographic area of use with no paperwork required. Federal registration on the Principal Register adds major advantages: nationwide constructive notice, prima facie evidence of validity and ownership, incontestability after 5 years of continuous use, the right to use the ® symbol, federal court access, and the ability to record the mark with Customs to stop infringing imports at the border.

The central enforcement test is likelihood of confusion — whether a mark's use in commerce would likely confuse consumers about source, sponsorship, or affiliation. Courts apply multi-factor analyses (varying by circuit but generally considering strength of the senior mark, similarity of the marks, relatedness of goods/services, evidence of actual confusion, consumer sophistication, and intent of the accused infringer). For famous marks — those widely recognized by the general consuming public, like Coca-Cola, Google, or Disney — trademark owners get a stronger weapon: dilution claims that require no consumer confusion. Dilution by blurring weakens a famous mark's distinctiveness through association with dissimilar goods; dilution by tarnishment harms its reputation through association with inferior or distasteful products. Both are actionable under the Trademark Dilution Revision Act regardless of whether any consumer is actually confused.

How It Affects You

State Variations

Pending Legislation

• SRES 314 — Designates July 2025 as a month for trademark awareness, promoting understanding of trademark protections and intellectual property rights. Status: Passed Senate.
• S 1546 — Patent Eligibility Restoration Act: would reform Section 101 patent eligibility standards, with implications for the intersection of patent and trademark protection for product designs. Status: Introduced.
• HR 4930 — Would expand CBP's authority to share data on intellectual property violations at the border with rights holders, improving enforcement against counterfeit goods. Status: Introduced.
• S 2677 — Would expand CBP data sharing for suspected IP violations, complementing existing trademark enforcement at ports of entry. Status: Introduced.
• S 2658 — Medication Affordability and Patent Integrity Act: would address pharmaceutical patent thickets and brand-name protections that delay generic competition, affecting trademark and trade dress claims in the pharmaceutical sector. Status: Introduced.

Recent Developments

• The Supreme Court in Jack Daniel's v. VIP Products (2023) held that the First Amendment's "Rogers test" doesn't apply when a mark is used as a source identifier — strengthening trademark holders' rights against parody products
• AI-generated trademarks and AI brand impersonation are emerging issues with no settled legal framework
• USPTO has implemented modernized examination procedures and increased attention to fraudulent trademark specimens
• Online platforms face complex trademark enforcement questions at the intersection of Section 230 immunity and the Lanham Act's intellectual property exception
• Brand protection in the metaverse and virtual goods (NFTs, virtual fashion) has generated new trademark registration activity and litigation
• AI and trademark registration — USPTO guidance on AI-generated marks (2025): The USPTO has issued guidance clarifying that AI-generated trademarks are registrable if a human made the creative decisions in the mark's design — the same human authorship standard applied to copyright. Purely machine-generated marks with no human creative input are not registrable. The more pressing issue is fraudulent trademark specimens: the USPTO has seen a surge in fraudulent specimen submissions (AI-generated images of marks on products that don't actually exist) from foreign applicants. The USPTO has been increasing examination scrutiny and requiring additional evidence of actual use in commerce when specimens appear AI-generated. Legitimate brand owners should maintain clear records of actual use in commerce to defend against challenges.
• Jack Daniel's v. VIP Products (2023) and parody limits: The Supreme Court's Jack Daniel's Properties v. VIP Products (2023) held that the artistic relevance/explicitly misleading test (Rogers v. Grimaldi) does not apply when a defendant uses a mark "as a designation of source" — meaning parody products that explicitly copy product appearance for commercial sale face full likelihood-of-confusion analysis rather than the more permissive artistic expression test. For brand owners: this decision significantly strengthens trademark rights against parody merchandise that competes with or dilutes the original. For creators: low-value commercial parody goods face increased trademark exposure, while clearly non-commercial parody (commentary, satire, artistic expression not sold as merchandise) remains more protected.
• China trademark enforcement and gray market — ongoing (2025): Chinese manufacturers filing U.S. trademark registrations for brands they don't own — often established in China before a U.S. brand attempts to enter the market — continue to challenge U.S. brand owners. Trump's 145% tariffs on Chinese goods (2025) have complicated gray market enforcement: some Chinese manufacturers facing tariff-driven export restrictions are pivoting to domestic U.S. distribution of goods that may infringe U.S. trademarks. Brand owners selling through Amazon and other marketplaces should actively use Amazon Brand Registry, Trademark Electronic Search System (TESS), and USPTO's Trademark Assistance Center to monitor and challenge infringing Chinese registrations.