Atty. John B Massopust

Atty. John B Massopust

John B Massopust is a lawyer practicing antitrust and unfair competition, business disputes and commercial litigation, class actions and 6 other areas of law. John received a B.A. degree from Colorado College in 1973, and has been licensed for 48 years.

Minneapolis Minneapolis 48 yrs experience 48 year
Call (320) 299-2339 Book Appointment

Profile Summary

About John B Massopust at a glance

John B Massopust is a Partner based in Minneapolis, Minnesota, practicing at Zelle LLP. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on business, ip, class action, litigation, and civil rights. Admitted to practice in Minnesota U.S. Court of Appeals, Eighth Circuit U.S. District Court, District of Minnesota, U.S. Dis (1978). Educated at William Mitchell College of Law (J.D., 1978) and Colorado College (B.A., 1973). Recognitions include AV Preeminent. Serands clients in Minneapolis, MN and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John B Massopust is a lawyer practicing antitrust and unfair competition, business disputes and commercial litigation, class actions and 6 other areas of law
  • John received a B.A. degree from Colorado College in 1973, and has been licensed for 48 years
  • John practices at Zelle LLP in Minneapolis, MN

Practice Areas Explained

John B Massopust's Areas of Practice

Each practice area below reflects the types of cases John B Massopust handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

John B Massopust is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Minnesota →

Intellectual Property

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

John B Massopust is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Minnesota →

Class Action

John B Massopust is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Minnesota →

Civil Litigation

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

John B Massopust is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Minnesota →

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

John B Massopust is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights attorneys in Minnesota →

Jurisdictional Context

Why local counsel matters in Minnesota

Practicing law in Minnesota. Legal matters in Minnesota are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Minneapolis are typically filed in the local municipal court or the appropriate Minnesota state district court, depending on subject matter and amount in controversy. An attorney licensed in Minnesota 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 Minnesota courts without local counsel or pro hac vice admission.

Looking for additional Minnesota attorneys? Browse all attorneys in Minneapolis or all attorneys in Minnesota.

Frequently Asked

Common questions about John B Massopust

Where is John B Massopust's law office located?
John B Massopust's law practice is located in Minneapolis, Minnesota. The firm is Zelle LLP. You can contact the office directly through this profile page.
What practice areas does John B Massopust handle?
John B Massopust focuses on business, ip, class action, litigation, civil rights. Each practice area listed reflects experience handling cases of that type in Minnesota.
How long has John B Massopust practiced law?
John B Massopust has 48+ years of legal experience and has been licensed since 1978.
Where did John B Massopust go to law school?
John B Massopust earned their education at (J.D., 1978); (B.A., 1973).
How can I contact John B Massopust for a consultation?
You can contact John B Massopust 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 John B Massopust received?
John B Massopust's notable recognition includes: AV Preeminent.

Education

J.D.
William Mitchell College of Law
- 1978
B.A.
Colorado College
- 1973

Awards

AV Preeminent

Bar Admissions

Minnesota U.S. Court of Appeals, Eighth Circuit U.S. District Court, District of Minnesota, U.S. Dis
Admitted: 1978

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