Atty. Michael R. Heyison

Atty. Michael R. Heyison

Michael R. Heyison is a lawyer practicing litigation/controversy, antitrust / trade law, patent infringement and 2 other areas of law.

Boston Boston 44 yrs experience 44 year
Call (857) 416-1942 Book Appointment

Profile Summary

About Michael R. Heyison at a glance

Michael R. Heyison is a Partner; General Counsel and Co-Chair of the Ethics Committee based in Boston, Massachusetts, practicing at WilmerHale. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on patent, business, ip, and litigation. Admitted to practice in Massachusetts (1982) and District of Columbia (1983). Educated at Harvard Law School (J.D., 1982) and Yale University (B.A., 1979). Recognitions include AV Preeminent. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Michael R. Heyison is a lawyer practicing litigation/controversy, antitrust / trade law, patent infringement and 2 other areas of law
  • Michael received a B.A. degree from Yale University in 1979, and has been licensed for 44 years
  • Michael practices at WilmerHale in Boston, MA

Practice Areas Explained

Michael R. Heyison's Areas of Practice

Each practice area below reflects the types of cases Michael R. Heyison handles, with a brief overview of what that area of law covers.

Patent Law

Michael R. Heyison is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Massachusetts →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Michael R. Heyison is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Michael R. Heyison is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Massachusetts →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Michael R. Heyison is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Jurisdictional Context

Why local counsel matters in Massachusetts

Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boston are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Massachusetts courts without local counsel or pro hac vice admission.

Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.

Frequently Asked

Common questions about Michael R. Heyison

Where is Michael R. Heyison's law office located?
Michael R. Heyison's law practice is located in Boston, Massachusetts. The firm is WilmerHale. You can contact the office directly through this profile page.
What practice areas does Michael R. Heyison handle?
Michael R. Heyison focuses on patent, business, ip, litigation. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Michael R. Heyison practiced law?
Michael R. Heyison has 44+ years of legal experience and has been licensed since 1982.
Where did Michael R. Heyison go to law school?
Michael R. Heyison earned their education at (J.D., 1982); (B.A., 1979).
How can I contact Michael R. Heyison for a consultation?
You can contact Michael R. Heyison directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Michael R. Heyison received?
Michael R. Heyison's notable recognition includes: AV Preeminent.

Education

J.D.
Harvard Law School
- 1982
B.A.
Yale University
- 1979

Awards

AV Preeminent

Bar Admissions

Massachusetts
Admitted: 1982
District of Columbia
Admitted: 1983

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