A European technology company launches its flagship product in the United States. The brand has been registered in a dozen jurisdictions. Six months into the US market, a competitor files a nearly identical trademark – and the courts side with them. The foreign company had relied on its international registration. It had never established priority through the US system. The brand it built over years is now unusable in its most valuable market.
IP portfolio management in the United States requires a distinct strategy from most other jurisdictions. US intellectual property law – covering trademarks, patents, copyrights, and trade secrets – operates through federal legislation and is enforced before federal courts and specialist bodies. International companies must register and document their rights independently under US rules, regardless of protection held elsewhere. Building a defensible US portfolio takes between one and three years depending on asset type and market conditions.
This guide walks through each stage of the process: from initial clearance and filing through prosecution, maintenance, and enforcement. It covers the procedural requirements that trip up international clients, the cost ranges to plan around, and the decision points that determine whether a portfolio delivers commercial protection or false confidence.
How the US intellectual property system works for foreign rights holders
The United States applies a predominantly federal IP registration system. Trademarks, patents, and plant variety rights fall under the authority of the US Patent and Trademark Office (USPTO). Copyright protection arises automatically under US copyright legislation, though registration is required before bringing an infringement claim in federal court.
The foundational principle that surprises most foreign companies is priority. In the US trademark system, rights derive from actual use in commerce – not from registration alone. A company that files a trademark application before a competitor, but fails to use the mark in US commerce, may ultimately lose to a later filer who can demonstrate genuine commercial use. This use-based system contrasts sharply with first-to-file regimes in the EU, China, and most civil law jurisdictions.
Patent law in the United States moved to a first-inventor-to-file system following amendments to US patent legislation, but the practical emphasis on documented invention dates, laboratory notebooks, and internal development records remains important in disputes. Practitioners in the US routinely advise foreign clients to audit their existing documentation before filing any US patent application.
For companies structured as a Delaware LLC (Delaware limited liability company) or another US entity, IP ownership should be clearly assigned to the correct legal person from the outset. A common and costly error is for a foreign parent to conduct US operations through a subsidiary while IP rights remain registered in the parent's name. This creates enforceability gaps and complicates licensing structures. The distinction matters acutely when enforcement before a US District Court (a federal trial court with jurisdiction over IP matters) becomes necessary.
Trade secret protection operates under a combination of federal trade secret legislation and state law. Unlike patents, trade secrets require no registration – but they require active, documented steps to maintain confidentiality. Courts in the United States have consistently held that a company which fails to implement reasonable confidentiality measures may lose trade secret status entirely, even for genuinely valuable proprietary information.
Step-by-step: building a US IP portfolio from abroad
The following sequence reflects the practical order in which an international company should address its US IP position. The steps are not always linear – patent and trademark work often proceed in parallel – but the sequence below reflects the dependencies that matter most.
Step 1: Clearance search (weeks 1–4)
Before filing any trademark application, a clearance search is essential. The USPTO database is publicly searchable, but a thorough clearance search covers common law uses – marks in commercial use that have never been registered but may carry prior rights in specific geographic areas. Unregistered prior users can block registration or bring an infringement claim even without a federal registration. A clearance search typically takes two to four weeks and should cover all Nice classification (the international classification system for goods and services. Maintained by the World Intellectual Property Organization) classes relevant to the company's current and foreseeable US activities.
Step 2: Application filing and basis selection (weeks 4–8)
A US trademark application can be filed on one of two bases: actual use in commerce, or intent to use. Foreign companies entering the US market frequently file on an intent-to-use basis, which preserves the filing date as a priority date while allowing time to establish commercial operations. The application must identify the mark, the goods or services, and the relevant Nice classification classes. Each class carries a separate government fee. Applications are filed electronically through the USPTO's online system.
Foreign companies may also reach the US through the Madrid Protocol route, designating the United States through an international application. This can reduce administrative costs for companies already maintaining a Madrid System portfolio. However, Madrid-route applications carry a dependency risk: if the base application or registration is cancelled within five years of the international registration date, the US designation falls with it. Direct US filing avoids this vulnerability.
Step 3: USPTO examination (months 3–8)
After filing, the USPTO assigns an examining attorney who reviews the application for compliance with formal requirements and for conflicts with existing registrations. If the examiner identifies an issue – a likelihood of confusion with a prior mark, a descriptiveness refusal, or a goods-and-services specification problem – an office action is issued. The applicant has a fixed response period, typically three months extendable to six. Failure to respond within the deadline results in abandonment. A well-drafted initial application reduces the likelihood of office actions, but many applications receive at least one.
Step 4: Publication and opposition proceedings (months 8–11)
Applications that survive examination are published in the Official Gazette of the USPTO. Any party who believes it would be harmed by registration has 30 days from publication to oppose. Opposition proceedings (inter partes challenges to trademark registration conducted before the Trademark Trial and Appeal Board) can extend the timeline by 12 to 24 months and involve discovery, briefing, and in some cases oral argument. For international companies with strong existing brands, monitoring the Official Gazette for potentially conflicting applications filed by third parties is equally important.
Step 5: Registration and use declaration (months 12–18 and ongoing)
Intent-to-use applications require a statement of use – or an extension of time to file one – before registration issues. The applicant must demonstrate actual use of the mark in US commerce. Once registered, a trademark must be maintained through periodic declarations of continued use and renewal filings. Failure to file maintenance documents at the correct intervals results in cancellation. This ongoing administrative burden is frequently underestimated by foreign IP holders accustomed to longer renewal cycles in other systems.
For patents, the timeline is longer. A US utility patent application typically takes two to four years from filing to grant. Prosecution involves responding to examiner rejections, claim amendments, and – in complex technology areas – multiple rounds of examination. International companies should file a US national phase application from a Patent Cooperation Treaty (PCT) international application by the 30-month deadline from the earliest priority date. Missing that deadline generally forecloses US patent protection for that application.
For a detailed analysis of how US intellectual property rules intersect with emerging technology and AI-generated works. The firm's work on AI law in the United States addresses the specific challenges technology companies face at the frontier of IP and algorithmic development.
To receive an expert assessment of your IP portfolio strategy in the United States, contact us at info@ferrazwhitmore.com.
Documentary checklist and common errors by international clients
International companies consistently encounter the same set of avoidable problems when managing US IP. Each error below corresponds to a concrete documentary or procedural requirement.
Absence of a US-domiciled correspondent address. The USPTO requires all foreign trademark applicants to designate a US-licensed attorney. This is not optional. Since 2019, foreign-domiciled applicants who file without a US attorney risk having their applications refused or declared void. The attorney of record must be licensed to practice before the USPTO.
Incorrect or overly broad goods-and-services descriptions. The USPTO applies a stricter standard for specificity than many foreign trademark offices. Descriptions such as "computer software" or "business services" are routinely refused as too vague. Each class in the Nice classification requires a precise description of the specific goods or services covered. Overly broad descriptions invite office actions and may create enforceability problems later.
Failure to document use in commerce adequately. When filing a statement of use or responding to an infringement challenge. The applicant must produce specimens showing the mark as actually used on goods or in connection with services in US commerce. Screenshots of a foreign website, brochures distributed only outside the United States, or internal documents do not qualify. Practitioners note that the most common reason for statements of use being refused is inadequate or incorrectly formatted specimens.
Missing maintenance deadlines. US trademarks require a declaration of use between the fifth and sixth year after registration, and renewal every ten years thereafter. Patents require maintenance fee payments at three intervals after grant. Missing any of these deadlines – even by a single day – results in cancellation or expiry. Calendar management for a multi-asset US IP portfolio requires a dedicated docketing system, not an informal reminder process.
Treating copyright as self-executing for enforcement purposes. US copyright legislation does not require registration for protection to exist. However, registration before infringement occurs – or within three months of first publication – is required to claim statutory damages and attorney fees in litigation. International companies that publish creative works in the US market without registering them retain only the right to seek actual damages, which are far harder to prove and often insufficient to justify litigation costs.
Inconsistent IP ownership across entity structures. A foreign company that operates in the United States through multiple entities. a Delaware LLC. A branch. Additionally, a US subsidiary, for example. must ensure that IP ownership is assigned and documented correctly at each stage. When an IP registration (the formal recording of intellectual property rights with the relevant US authority) stands in the name of an entity that no longer holds the underlying business. Enforcement becomes complicated and licensing structures break down.
Companies managing IP across multiple markets should also compare their US approach with their strategies in other jurisdictions. Our guide to IP portfolio management in Brazil covers the parallel challenges in another major common-law-adjacent but civil-law-grounded market.
Enforcement, disputes, and the decision framework
Holding a US IP registration is a starting point, not a conclusion. Enforcement requires active monitoring and a clear decision process for each threat encountered.
Trademark infringement claims in the United States are typically brought in federal court. The plaintiff must establish that the defendant used a mark in commerce in a way likely to cause consumer confusion. Courts apply a multi-factor test that weighs similarity of marks, similarity of goods or services, channels of trade, and evidence of actual confusion. The strength of the plaintiff's mark is a critical factor – descriptive or weak marks receive narrower protection than inherently distinctive ones.
Before filing a complaint in a US District Court, most practitioners recommend a cease-and-desist letter. This documents the rights holder's awareness of the infringement and creates a record. If the infringer does not respond or continues the infringing conduct, federal court proceedings can begin. Preliminary injunctive relief – an order requiring the infringer to stop while the case proceeds – is available but requires the plaintiff to demonstrate a likelihood of success on the merits and irreparable harm.
Alternative dispute resolution is widely used for IP disputes in the United States. Both JAMS (Judicial Arbitration and Mediation Services, a leading US private dispute resolution provider) and AAA arbitration (proceedings administered by the American Arbitration Association) offer specialist IP arbitration panels and expedited procedures. Arbitration is particularly useful where both parties are sophisticated commercial actors and confidentiality is a priority. Arbitral awards in IP matters are enforceable in federal court.
Domain name disputes involving US-registered or US-targeted domains can be pursued through the UDRP (Uniform Domain-Name Dispute-Resolution Policy) without court proceedings. This is faster and significantly less expensive than federal litigation, with decisions typically issued within 60 days. However, UDRP panels can only order transfer or cancellation of a domain – they cannot award damages. Where financial harm is the primary concern, federal court remains the appropriate route.
The decision framework for enforcement generally turns on three variables: the strength of the right being enforced, the commercial significance of the infringement, and the relative cost of each available procedure. For high-value marks with clear infringement by a solvent defendant, federal court litigation is often justified. For lower-value disputes or where speed matters more than damages, UDRP or AAA arbitration typically offer better outcomes per dollar spent.
International companies should also consider the SEC's disclosure requirements when IP assets form a material part of a listed or pre-IPO company's value. The SEC (US Securities and Exchange Commission) expects companies with significant IP portfolios to disclose material IP risks and the status of key registrations. Gaps in a US IP portfolio can become disclosure problems at precisely the moment they are most commercially damaging – during a capital raise or acquisition process.
For comprehensive support on US intellectual property matters, including portfolio audits, prosecution strategy, and enforcement coordination, see our intellectual property services in the United States.
For a tailored strategy on IP portfolio management in the United States, reach out to info@ferrazwhitmore.com.
Self-assessment checklist before building your US IP portfolio
A US IP portfolio strategy is appropriate and achievable if the following conditions apply to your business situation.
This approach applies if:
- Your company sells goods, offers services, or licenses technology in the United States or is actively preparing to do so within 12 to 24 months.
- You hold IP rights – trademarks, patents, copyrights, or trade secrets – that have commercial value in the US market and are not yet registered under US law.
- Your business structure includes a US entity (such as a Delaware LLC or corporation) or you are evaluating the formation of one to hold or license IP assets.
- You have identified existing US registrations by third parties that may conflict with your intended marks or technology and need a clearance and response strategy.
- Your company is preparing for a funding round, acquisition, or public offering where US IP portfolio integrity will be subject to due diligence.
Before initiating any filing, verify:
- All relevant Nice classification classes for current and planned US products and services have been identified and budgeted for.
- A US-licensed attorney has been retained, as required for all foreign-domiciled USPTO filers.
- The correct legal entity has been designated as the applicant or assignee for each IP asset.
- Documentary evidence of use in US commerce – or a concrete plan for establishing such use – is in place for any trademark application filed on an intent-to-use basis.
- PCT international application deadlines have been reviewed for any patent families that may require US national phase entry.
- A docketing system is in place to track maintenance and renewal deadlines for all US registrations and granted rights.
Frequently asked questions
Q: How long does a US trademark application take for a foreign company?
A: A US trademark application filed by a foreign company typically takes between 12 and 18 months from filing to registration, assuming no substantive refusals or opposition proceedings arise. Office actions can add three to six months at each round. Planning a realistic timeline from the outset prevents product launch conflicts.
Q: Does a foreign trademark registration automatically protect a brand in the United States?
A: No. US trademark law is based on use-in-commerce principles, not registration in another country. A foreign registration provides no automatic protection in the United States. International companies must file independently with the USPTO, either directly or via the Madrid Protocol, and must eventually demonstrate actual use of the mark in US commerce.
Q: What is the typical cost range for building a basic IP portfolio in the United States?
A: For a single trademark covering one or two Nice classification classes, government filing fees start in the hundreds of dollars per class. Legal fees for prosecution, responding to office actions, and monitoring typically run into the thousands of dollars per mark. Patent prosecution is substantially more expensive, often reaching tens of thousands of dollars for a single utility patent application through grant. Engaging a lawyer in the United States with cross-border IP experience helps international companies allocate budget across asset types efficiently.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our team combines Portuguese civil law expertise with English common law tradition to deliver cross-border legal solutions in IP portfolio management, trademark prosecution, patent strategy, and enforcement in the United States. We work with international entrepreneurs, institutional investors, and in-house legal teams who need results-oriented counsel across multiple legal systems. As a law firm serving clients in the United States and beyond, we advise on US IP matters from clearance and filing through opposition proceedings and federal court enforcement. The firm's intellectual property practice covers major jurisdictions across Europe, the Americas, and Asia-Pacific, supported by a network of local counsel. Our attorneys have advised on trademark, patent. Additionally, trade secret matters across both civil law and common law systems. Additionally. Our team includes practitioners with experience before the Trademark Trial and Appeal Board, US District Courts. Additionally, in JAMS and AAA arbitration proceedings. To discuss your US IP portfolio strategy, contact us at info@ferrazwhitmore.com.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.