Atty. Mark A. Hamill

Atty. Mark A. Hamill

Mark A. Hamill is a lawyer practicing intellectual property law, patents, technology and science and 5 other areas of law.

Glen Ellyn Glen Ellyn 35 Years Experience 35 year
Call (331) 273-3335

Profile Summary

About Mark A. Hamill at a glance

Mark A. Hamill is a Member based in Glen Ellyn, Illinois, practicing at Law Office of Mark A. Hamill. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on patent, real estate, ip, and litigation. Admitted to practice in Illinois registered to practice before U.S. Patent and Trademark Office (1991). Educated at John Marshall Law School (J.D., 1991) and University of Illinois (B.S., 1985). Serves clients in Glen Ellyn, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark A. Hamill is a lawyer practicing intellectual property law, patents, technology and science and 5 other areas of law
  • Mark received a B.S. degree from University of Illinois in 1985, and has been licensed for 35 years
  • Mark practices at Law Office of Mark A. Hamill in Glen Ellyn, IL

Practice Areas Explained

Mark A. Hamill's Areas of Practice

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

Patent Law

Mark A. Hamill is one of 18,874 patent attorneys indexed nationally. Browse patent attorneys in Illinois →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Mark A. Hamill is one of 286,061 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Intellectual Property

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

Mark A. Hamill is one of 94,505 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Civil Litigation

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

Mark A. Hamill is one of 409,070 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 Glen Ellyn 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 venue, 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 Glen Ellyn or all attorneys in Illinois.

Frequently Asked

Common questions about Mark A. Hamill

Where is Mark A. Hamill's law office located?
Mark A. Hamill's law practice is located in Glen Ellyn, Illinois. The firm is Law Office of Mark A. Hamill. You can contact the office directly through this profile page.
What practice areas does Mark A. Hamill handle?
Mark A. Hamill focuses on patent, real estate, ip, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark A. Hamill practiced law?
Mark A. Hamill has 35+ years of legal experience and has been licensed since 1991.
Where did Mark A. Hamill go to law school?
Mark A. Hamill earned their education at (J.D., 1991); (B.S., 1985).
How can I contact Mark A. Hamill for a consultation?
You can contact Mark A. Hamill 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.

Education

J.D.
John Marshall Law School
- 1991
B.S.
University of Illinois
- 1985

Bar Admissions

Illinois registered to practice before U.S. Patent and Trademark Office
Admitted: 1991

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