IP Disputes Only
Keyhani LLC handles disputes over existing IP rights, licenses, confidential information, and related commercial/IP conflicts.
Washington, DC IP Litigation Boutique
Federal IP Litigation Counsel for Active Disputes
Keyhani LLC represents plaintiffs and defendants in high-stakes federal IP disputes involving patents, trademarks, copyrights, trade secrets, IP licensing disputes, NDA breach litigation, pharmaceutical patent litigation, and Federal Circuit appeals. From Washington, DC, the firm helps clients evaluate claims, defenses, deadlines, forums, and leverage.
20+ years
IP litigation experience
80+ cases
Federal cases as lead counsel
Federal Circuit
Appeal-aware litigation strategy
Federal-Court Focus
The firm represents clients from its Washington, DC office in IP matters tied to Washington, DC, New Jersey, New York, and Federal Circuit appellate work.
No Filing or Prosecution Services
Patent prosecution, trademark registration, and other filing/prosecution services are outside the firm's litigation practice.
When Clients Call
When the next litigation move cannot wait.
Clients contact Keyhani LLC when a letter, complaint, injunction threat, employee departure, license breach, or appeal deadline requires fast judgment about claims, defenses, forum, leverage, and timing.
Demand Letter or ComplaintA response deadline, counterclaim question, settlement opening, or preservation obligation needs immediate litigation judgment.
Launch or Injunction PressureA product, name, campaign, package, platform listing, or customer channel may be at risk.
Employee or Trade Secret IssueConfidential information, source code, customer lists, or product plans may require fast evidence preservation.
License, NDA, or Appeal RiskA broken agreement, breached NDA, adverse ruling, or Federal Circuit deadline changes the business posture.
Practice Areas
Choose the dispute path that matches the matter.
Select the litigation category that matches the dispute, then move quickly to the counsel best suited to evaluate claims, defenses, forum, remedies, and deadlines.
Patent Litigation
Infringement enforcement and defense, claim scope, venue, damages, injunctions, pharmaceutical patent litigation, and Federal Circuit preservation.
View patent litigation
Trademark Litigation
Trademark infringement, trade dress, dilution, false association, and unfair competition disputes in federal and state courts.
View trademark litigation
Copyright Litigation
Copyright infringement, fair use, software, digital-content, creative-work, DMCA, and related enforcement or defense disputes.
View copyright litigation
Trade Secret Litigation
Misappropriation claims, departing-employee disputes, source code, customer lists, and emergency relief strategy.
View trade secret litigation
IP Licensing Disputes
Royalty, license, field-of-use, termination, and performance conflicts tied to IP rights and commercial agreements.
View IP commercial litigation
NDA Breach Litigation
Confidential-information misuse, restricted disclosure, business relationship disputes, and evidence-preservation issues.
View IP commercial litigation
Commercial/IP
Business disputes with an IP nexus involving partners, competitors, distributors, technology, or confidential material.
View IP dispute resolution
Federal Circuit
Appeal-aware IP litigation strategy for claim construction, dispositive rulings, trial issues, injunctions, and final decisions.
View Federal Circuit appealsWhy Keyhani LLC
Focused litigation judgment for high-stakes IP disputes.
Clients facing an IP dispute need to confirm fit, scope, credibility, and next action quickly. Keyhani LLC keeps the focus on claims, defenses, forum, deadlines, leverage, and business objectives.
Focused litigation judgment for high-stakes IP disputes.
Keyhani LLC represents clients in federal IP disputes where forum, deadlines, evidence, remedy pressure, and business risk need to be evaluated quickly. The firm keeps the work centered on disputes, not filing or prosecution services.
Lead counsel experienceDarius Keyhani brings 20+ years of IP litigation experience and 80+ federal cases as lead counsel.
Federal litigation focusPatent, trademark, copyright, trade secret, IP licensing, NDA breach, pharmaceutical patent, Federal Circuit, and related commercial/IP disputes.
Litigation-only scopeThe firm handles disputes over existing rights and obligations. Filing, drafting, registration, and prosecution work are outside the litigation practice.
Attorney Leadership
Meet the attorneys leading the firm's IP litigation work.
Darius Keyhani and Frances Stephenson lead Keyhani LLC's federal IP litigation practice.
Darius Keyhani
Founder and lead counsel with 20+ years of IP litigation experience, 80+ federal cases as lead counsel, Federal Circuit experience, U.S. Supreme Court bar admission, and an LL.M. from NYU School of Law.
Frances Stephenson
Member and co-owner of Keyhani LLC. Her credentials include a J.D. magna cum laude from SUNY Buffalo School of Law, selection as one of six Research and Writing Fellows, and New York bar admission.
Courts and Markets
Washington, DC office. Federal IP litigation focus.
From its Washington, DC office, Keyhani LLC represents clients in federal IP disputes connected to Washington, DC, New Jersey, New York, and Federal Circuit appellate work. For matters in other courts, the firm evaluates the forum, deadlines, claims, and counsel requirements before engagement.
Washington DC
Principal office at 1050 30th Street NW, Washington, DC 20007.
New Jersey and New York Metro
Federal IP disputes connected to New Jersey and New York are evaluated by forum, claims, deadlines, and litigation posture.
Federal Circuit
Federal Circuit appellate experience supports appeal-aware strategy in patent and related IP litigation.
Common Questions
Questions before contacting the firm
Short answers for scope, court coverage, and the materials that help the firm evaluate a new IP dispute.
Does Keyhani LLC handle patent prosecution or trademark registration?
No. Keyhani LLC is a litigation-only IP boutique. Patent prosecution, trademark registration, and other filing/prosecution services are outside its scope.
What kinds of IP disputes does the firm litigate?
The firm handles patent, trademark, copyright, trade secret, IP licensing disputes, NDA breach litigation, pharmaceutical patent litigation, Federal Circuit appeals, and related commercial/IP disputes.
What courts and markets does Keyhani LLC serve?
Keyhani LLC serves clients from its Washington, DC office in matters tied to Washington, DC, New Jersey, New York, and Federal Circuit appellate work. Matters in other forums are evaluated case by case, including any local-counsel or admission requirements.
How do I start a case evaluation?
Use the contact form or call the main firm number at (202) 748-8950. Useful starting materials include the complaint, demand letter, asserted rights, relevant agreements, key correspondence, deadlines, and business objective.
Discuss your IP matter with litigation counsel.
If an IP dispute is affecting a product, brand, confidential information, agreement, court deadline, or appeal, contact Keyhani LLC to discuss the next litigation move.