U.S. Patent Services for Foreign Clients
Strategic U.S. patent prosecution for foreign applicants, law firms, and in-house IP teams
AddyHart's Divergent practice partners with foreign associates, multinational companies, research institutions, and innovators seeking patent protection in the United States. We provide responsive, transparent, and technically sophisticated representation before the U.S. Patent and Trademark Office, helping clients navigate every stage of U.S. patent prosecution with predictable pricing and clear communication.
U.S. Patent Services for International Applicants
Whether entering the U.S. through the PCT national stage, responding to an Office Action, or coordinating global portfolio strategy, we work closely with foreign associates and applicants to provide efficient, reliable U.S. patent prosecution. Our goal is to serve as an extension of your team while delivering clear advice, predictable budgets, and timely work product.
We work closely with foreign associates, multinational companies, research institutions, and in-house intellectual property teams to develop U.S. patent prosecution strategies that complement broader international portfolios. We provide experienced representation throughout every stage of the U.S. patent process:
Entering the U.S.
PCT National Stage Entry
Direct U.S. Filings
Filing Strategy
Portfolio Coordination
Patent Prosecution
Office Action Responses
Examiner Interviews
Restriction & Election Practice
IDS & Continuations
Advanced Proceedings
Ex Parte Appeals
PTAB Proceedings
Federal Circuit Appeals
Global Portfolio Strategy
Foreign Client Services
Transparent Pricing
We believe clients should understand the expected cost of patent prosecution before work begins. Many of our most common services are offered at predetermined professional fees, allowing clients to budget with confidence and avoid unexpected billing.
Extension Fees
$0 USD
Draft responses within two weeks of receiving communications from the USPTO, thereby avoiding costly extension fees.
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PTAB Appeals
$3500 USD
Preparation and presentation of USPTO Patent Trial and Appeal Board appeals, including the Appeal Brief, Reply Brief, and oral argument, to advocate for patentability after a final rejection.
Read Insights
Application-drafting fees are established in advance based on the technology, complexity, number of embodiments, and anticipated scope of the application.
We target delivery of draft Office Action responses within two weeks after receiving the USPTO communication and the information needed to prepare the response. Routine administrative work—such as issue-fee processing, preparation of standard Information Disclosure Statements, and filing an instructed Request for Continued Examination—is not used as a separate source of professional fees.
Listed amounts are AddyHart professional fees for standard matters within the described scope. USPTO fees, drawings, searches, translations, experts, vendors, appeals, petitions, declarations, litigation, and extraordinary matters are excluded unless expressly stated. All representations are subject to conflicts clearance and a written engagement agreement
Why Foreign Associates Choose Divergent
Experienced Attorneys
Our attorneys remain substantively involved in understanding the invention, developing the claims, interviewing examiners, and advising clients about consequential prosecution decisions.
Comparative Perspective
Our attorneys regularly advise clients on the practical differences between U.S. patent practice and the procedures of major foreign patent offices, including the EPO, JPO, KIPO, and CNIPA. Through our comparative publications and prosecution experience, we help foreign applicants develop U.S. strategies that complement broader international portfolio objectives.
Responsive Service
We understand that timely communication is essential when coordinating prosecution across jurisdictions. Our team provides prompt reporting, predictable turnaround times, and clear recommendations, allowing foreign associates and in-house IP teams to manage U.S. prosecution efficiently and keep global portfolios moving forward.
Technical Depth
Our attorneys have experience representing innovations across software, artificial intelligence, semiconductors, medical devices, industrial automation, telecommunications, advanced manufacturing, and other complex technologies. This technical foundation allows us to quickly understand new inventions and provide practical, informed guidance throughout U.S. patent prosecution.
Transparent Pricing
We believe clients should understand the expected cost of U.S. patent prosecution before work begins. Many of our most common services are offered at fixed or predetermined professional fees, providing predictable budgets while eliminating unnecessary charges for routine administrative work.
Comparative Resources
Our attorneys regularly publish practical insights comparing U.S. patent practice with major international patent offices, helping foreign applicants and associates better understand the procedures, strategies, and considerations involved in obtaining U.S. patent protection.
Get In Touch
Whether you are developing a new patent portfolio, transferring existing prosecution work, preparing for a product launch, or responding to a challenge against an issued patent, we would welcome the opportunity to discuss your objectives.
Please do not include confidential information in an initial inquiry. An attorney-client relationship is formed only through a written engagement agreement.