Hikma Pharmaceuticals USA Inc. v. Amarin Pharma
146 S. Ct. 1391 · Decided June 4, 2026 · Supreme Court of the United States
Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.
At a glance
Hikma Pharmaceuticals USA Inc. v. Amarin Pharma was decided on June 4, 2026 unanimously (9–0). The Court reversed the lower court's decision and remanded the case. Justice Ketanji Brown Jackson wrote the opinion of the Court. SCDB classifies its main issue as “Patents” in the Economic Activity area.
Read the opinion
- CourtListener (Free Law Project) — opinion text
- Supreme Court of the United States — slip opinions, October Term 2025
- Supreme Court of the United States — docket 24-889
Case details
- Citations
- 146 S. Ct. 1391 · 225 L. Ed. 2d 159 · 2026 U.S. LEXIS 2358
- Docket number
- 24-889
- Decided
- June 4, 2026
- Argued
- April 29, 2026
- Court era
- Roberts Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Reversed and remanded
- Outcome for petitioner
- The petitioning party received a favorable disposition
- Vote
- 9–0 (unanimous)
- Majority opinion
- Ketanji Brown Jackson
- Opinion assigned by
- John G. Roberts Jr.
- How the case arrived
- Certiorari
- Issue (SCDB)
- Patents
- Issue area
- Economic Activity
- Legal provision
- 21 U. S. C. §355
- Type of law
- Infrequently litigated statute
- Decision direction (SCDB)
- Liberal what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice Clarence Thomas | Majority | |
| Chief Justice John G. Roberts Jr. | Majority | |
| Justice Samuel A. Alito Jr. | Majority | |
| Justice Sonia Sotomayor | Majority | |
| Justice Elena Kagan | Majority | |
| Justice Neil M. Gorsuch | Majority | |
| Justice Brett M. Kavanaugh | Majority | |
| Justice Amy Coney Barrett | Majority | |
| Justice Ketanji Brown Jackson | Majority | Wrote an opinion |
Full case caption
Hikma Pharmaceuticals USA Inc. v. Amarin Pharma
SCDB identifiers: case 2025-051, docket 2025-051-01.
Related decisions
Other cases on “Patents”
- Amgen Inc. v. Sanofi
- Minerva Surgical Inc. v. Hologic Inc.
- Thryv v. Click-To-Call Technologies, Lp
- Return Mail Inc. v. U.S. Postal Service
- Helsinn Healthcare S.A. v. Teva Pharmaceuticals USA Inc.
- Westerngeco LLC v. Ion Geophysical Corp.
Same Term, same area (Economic Activity)
- Coney Island Auto Parts Unlimited, Inc. v. Burton
- U.S. Postal Service v. Konan
- Galette v. New Jersey Transit Corporation
- Cox Communications v. Sony Music Entm't
- Hencely v. Fluor Corporation
- Jules v. Andre Balazs Properties
Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error