Atty. Mark Jay Liss

Atty. Mark Jay Liss

Mark Jay Liss is a lawyer practicing litigation, trademarks and copyrights, trade secrets and unfair competition and 1 other area of law. Mark received a B.A. degree from University of Illinois in 1978, and has been licensed for 45 years.

Chicago Chicago 45 J. Erfahrung 45 year
Call (224) 312-2439 Book Appointment

Profile Summary

About Mark Jay Liss at a glance

Mark Jay Liss is a Member based in Chicago, Illinois, practicing at Leydig, Voit & Mayer, Ltd.. They have 45+ years of legal experience, licensed to practice since 1981. Their practice focuses on trademark, copyright, ip, trade secrets, and litigation. Admitted to practice in Illinois U.S. Court of Appeals, Federal, Ninth and Seventh Circuits U.S. District Court, Northern Di (1981). Educated at Chicago-Kent College of Law, Illinois Institute of Technology (J.D., 1981) and University of Illinois (B.A., 1978). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Mark Jay Liss is a lawyer practicing litigation, trademarks and copyrights, trade secrets and unfair competition and 1 other area of law
  • Mark received a B.A. degree from University of Illinois in 1978, and has been licensed for 45 years
  • Mark practices at Leydig, Voit & Mayer, Ltd. in Chicago, IL

Practice Areas Explained

Mark Jay Liss's Areas of Practice

Each practice area below reflects the types of cases Mark Jay Liss handles, with a brief overview of what that area of law covers.

Trademark Law

Mark Jay Liss is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Illinois →

Copyright Law

Mark Jay Liss is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in Illinois →

Intellectual Property

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

Mark Jay Liss is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Trade Secrets

Mark Jay Liss is one of 6,644 trade secrets attorneys indexed nationally. Browse trade secrets attorneys in Illinois →

Civil Litigation

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

Mark Jay Liss is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

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

Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.

Frequently Asked

Common questions about Mark Jay Liss

Where is Mark Jay Liss's law office located?
Mark Jay Liss's law practice is located in Chicago, Illinois. The firm is Leydig, Voit & Mayer, Ltd.. You can contact the office directly through this profile page.
What practice areas does Mark Jay Liss handle?
Mark Jay Liss focuses on trademark, copyright, ip, trade secrets, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark Jay Liss practiced law?
Mark Jay Liss has 45+ years of legal experience and has been licensed since 1981.
Where did Mark Jay Liss go to law school?
Mark Jay Liss earned their education at (J.D., 1981); (B.A., 1978).
How can I contact Mark Jay Liss for a consultation?
You can contact Mark Jay Liss 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 Mark Jay Liss received?
Mark Jay Liss's notable recognition includes: AV Preeminent.

Education

J.D.
Chicago-Kent College of Law, Illinois Institute of Technology
- 1981
B.A.
University of Illinois
- 1978

Awards

AV Preeminent

Bar Admissions

Illinois U.S. Court of Appeals, Federal, Ninth and Seventh Circuits U.S. District Court, Northern Di
Admitted: 1981

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