Mark Fleming is co-chair of WilmerHale's Appellate and Supreme Court Litigation Practice. He is an accomplished and well-regarded litigator who has appeared in more than 300 appellate cases and personally presented oral argument in 77 of them, including eight oral arguments before the Supreme Court of the United States. He has also argued before the Supreme Judicial Court of Massachusetts, the Massachusetts Appeals Court, and the First, Second, Third, Eighth, Ninth, Tenth, Eleventh, Federal, and District of Columbia Circuits.
Mark C. Fleming
Recognized in Best Lawyers since 2023 Awarded Practice Areas
Litigation - Intellectual Property
Awarded Practice Areas
Litigation - Intellectual Property
Biography
Locations
Languages
- French
- German
- Spanish
Education
- Harvard University, J.D., graduated 1997
- King's College, BA, English and German, graduated 1994
Bar Admissions
Court Admissions
- US Supreme Court
- US Court of Appeals for the Federal Circuit
- US Court of Appeals for the First Circuit
- US Court of Appeals for the Second Circuit
- US Court of Appeals for the Third Circuit
- US Court of Appeals for the Fourth Circuit
- US Court of Appeals for the Fifth Circuit
- US Court of Appeals for the Sixth Circuit
- US Court of Appeals for the Eighth Circuit
- US Court of Appeals for the Ninth Circuit
- US Court of Appeals for the Tenth Circuit
- US Court of Appeals for the District of Columbia Circuit
- US District Court for the District of Massachusetts
- US District Court for the Eastern District of Michigan
Client Testimonials
Awards & Focus
Recognized in The Best Lawyers in America® 2026 for work in:
- Litigation - Intellectual Property
Additional Areas of Practice:
- Appellate Practice
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