Federal Circuit
Leonard Philip Stark
Judge, U.S. Court of Appeals for the Federal Circuit
Appointment
- Court
- U.S. Court of Appeals for the Federal Circuit
- Title
- Judge
- Appointed by
- Joseph R. BidenDemocratic
- Seat
- CAFC1004
- Nominated
- Jan. 3, 2022
- Committee action
- Reported (favorably)Jan. 13, 2022
- Senate vote
- 61–35Roll Call
- Confirmed
- Feb. 9, 2022
- Commissioned
- March 16, 2022
- ABA rating
- Well Qualified
Source Federal Judicial Center.
Judicial service history
Every federal judicial office held, in order of appointment.
| Court | Title | Commissioned | Ended | Appointed by |
|---|---|---|---|---|
| U.S. District Court for the District of Delaware | Judge | Aug. 10, 2010 | March 17, 2022 Appointment to Another Judicial Position | Barack Obama |
| U.S. Court of Appeals for the Federal Circuit | Judge | March 16, 2022 | In service | Joseph R. Biden |
Recent judicial activity
Opinions authored and panels sat on, most recent first.
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Sept. 30
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Sept. 16panel identified Sat on the panel in Island Creek Associates, LLC v. United States
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Sept. 8opinion issued Authored the opinion in Brack v. Collins
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Sept. 4
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Sept. 2panel identified Sat on the panel in Netlist, Inc. v. Micron Technology, Inc.
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Aug. 31opinion issued Authored the opinion in Jadue v. Dhs
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Aug. 31
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Aug. 31opinion issued Authored the opinion in Christensen v. United States
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Aug. 11
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Aug. 10panel identified Sat on the panel in Chitlik v. Hhs
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Aug. 7opinion issued Authored the opinion in Archroma U.S., Inc. v. Commerce
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Aug. 4opinion issued Authored the opinion in Johnson v. United States
Cases
Appellate cases on which this judge sat, drawn from panel information published with each decision.
Judicial writings
Opinions, concurrences and dissents attributed to this judge by the source record.
| Type | Case | Court | Filed |
|---|---|---|---|
| Opinion | Parkervision, Inc. v. Qualcomm Incorporated | Federal Circuit | Sept. 30, 2026 |
| Opinion | Brack v. Collins | Federal Circuit | Sept. 8, 2026 |
| Opinion | Connecticut Yankee Atomic Power Company v. United States | Federal Circuit | Sept. 4, 2026 |
| Opinion | Jadue v. Dhs | Federal Circuit | Aug. 31, 2026 |
| Opinion | Estate of Paul Bruyea v. United States | Federal Circuit | Aug. 31, 2026 |
| Opinion | Christensen v. United States | Federal Circuit | Aug. 31, 2026 |
| Opinion | Archroma U.S., Inc. v. Commerce | Federal Circuit | Aug. 7, 2026 |
| Opinion | Johnson v. United States | Federal Circuit | Aug. 4, 2026 |
| Concurrence | Ironburg Inventions Ltd. v. Valve Corporation | Federal Circuit | June 18, 2026 |
| Opinion | Pressly v. United States | Federal Circuit | April 30, 2026 |
| Opinion | Linyi Chengen Import and Export Co., Ltd. v. United States | Federal Circuit | April 29, 2026 |
| Opinion | Life Science Logistics, LLC v. United States | Federal Circuit | April 15, 2026 |
| Opinion | Perciavalle v. Collins | Federal Circuit | April 3, 2026 |
| Opinion | Kernz v. Collins | Federal Circuit | April 3, 2026 |
| Opinion | Apple Inc. v. Itc | Federal Circuit | March 19, 2026 |
| Opinion | Global Tubing LLC v. Tenaris Coiled Tubes LLC | Federal Circuit | Feb. 26, 2026 |
| Opinion | Mutakaber v. Secretary of State | Federal Circuit | Dec. 18, 2025 |
| Opinion | Adnexus Inc. v. Meta Platforms, Inc. | Federal Circuit | Dec. 5, 2025 |
| Opinion | Escapex Ip, LLC v. Google LLC | Federal Circuit | Nov. 25, 2025 |
| Opinion | Duke University v. Sandoz Inc. | Federal Circuit | Nov. 18, 2025 |