Professionals

Keyhani LLC IP Litigation Professionals

Meet the attorneys behind Keyhani LLC's IP litigation work. The firm represents plaintiffs and defendants in patent, trademark, copyright, trade secret, NDA breach, IP licensing disputes, Federal Circuit appeals, and related commercial litigation matters.

Litigation-only IP focus Disputes, enforcement, defense, appeals, and court-focused strategy.
80+ federal cases Darius Keyhani has served as lead counsel in 80+ federal cases.
Verified admissions Darius's admitted forums and Frances's New York-only admission are stated clearly.
Attorney Profiles

IP Litigation Attorneys at Keyhani LLC

Each attorney profile gives a focused summary of role, litigation focus, admissions, and the practice areas most closely connected to that attorney's work.

Darius Keyhani
Founder and Lead Counsel

Darius Keyhani

Darius founded Keyhani LLC and leads the firm's federal IP litigation practice. His verified proof points include 20+ years of IP litigation experience, 80+ federal cases as lead counsel, and Federal Circuit appellate experience.

  • FocusPatent litigation, Federal Circuit appeals, pharmaceutical patent litigation, trade secret litigation, trademark, copyright, NDA, and related IP disputes.
  • AdmissionsDC, New Jersey, Federal Circuit, U.S. Supreme Court bar, SDNY, EDNY, WDNY, and D.N.J.
Frances Stephenson
Member and Co-Owner

Frances Stephenson

Frances is a Keyhani LLC member and co-owner. Her verified credentials include New York bar admission, a J.D. magna cum laude from SUNY Buffalo School of Law, and selection as one of six research and writing fellows.

  • FocusTrademark litigation, copyright litigation, trade secret litigation, NDA breach litigation, and related IP disputes.
  • AdmissionsNew York only. Frances is not presented as admitted in DC, New Jersey, or any federal court unless separately confirmed.
Attorney Leadership

Focused IP Litigation Judgment

Keyhani LLC is built around courtroom disputes and appellate strategy. Darius Keyhani's federal litigation and appellate background anchors patent, Federal Circuit, trade secret, and broader IP disputes, while Frances Stephenson's New York-admitted profile supports trademark, copyright, trade secret, NDA, and related IP litigation work.

The attorney profiles state role, focus, and admissions plainly so clients can evaluate the right lawyer without overreading forum coverage or non-litigation services.

Practice Connections

Choose the Relevant Litigation Focus

After confirming attorney fit, move to the practice area that matches the dispute, forum, and business pressure.

Patent and Federal Circuit Matters

Darius is the primary attorney profile for patent litigation, Federal Circuit appeals, pharmaceutical patent disputes, and federal-court patent strategy.

Trademark and Copyright Disputes

Frances is the primary attorney profile for trademark, copyright, and brand-adjacent IP litigation matters, with New York admission stated clearly.

Trade Secret, NDA, and Licensing Disputes

Trade secret, NDA breach, IP licensing disputes, and related commercial litigation matters often require attorney review of business facts, evidence, forum, and remedy risk.

Which attorney profile should I review first?

Review Darius Keyhani for patent litigation, Federal Circuit appeals, pharmaceutical patent litigation, and federal IP disputes. Review Frances Stephenson for trademark, copyright, trade secret, NDA, and related IP litigation work connected to her New York admission.

Does Frances Stephenson's profile cover DC or New Jersey admission?

No. Frances Stephenson is presented as admitted in New York only. For any matter involving another forum, Keyhani LLC evaluates admission, appearance, and local-counsel requirements before engagement.

Can the firm review a dispute before a complaint is filed?

Yes. The firm can evaluate demand letters, threatened injunctions, launch pressure, evidence preservation issues, settlement posture, and other pre-suit litigation risks.

What work belongs outside this litigation practice?

Keyhani LLC handles litigation and dispute strategy. Non-litigation IP portfolio work belongs outside the firm's litigation practice. Contact the firm when an existing IP right or related business dispute needs litigation counsel.

How do the attorney profiles connect to the practice pages?

Use the attorney profiles to review role, focus, credentials, and admissions. Use the practice pages to match the matter to patent, trademark, copyright, trade secret, Federal Circuit, IP commercial, or dispute-resolution litigation services.

Discuss an IP Litigation Matter

If your matter involves patent, trademark, copyright, trade secret, NDA, Federal Circuit, IP licensing disputes, or related commercial litigation, contact Keyhani LLC to identify the right attorney fit and next step.