Atty. John R. Linzer

Atty. John R. Linzer

Mr. John R.

Chicago Chicago 22 J. Erfahrung 22 year
Call (224) 836-1454 Book Appointment

Profile Summary

About John R. Linzer at a glance

John R. Linzer is an Associate based in Chicago, Illinois, practicing at Quarles & Brady LLP. They have 22+ years of legal experience, licensed to practice since 2004. Their practice focuses on patent and ip. Admitted to practice in Illinois (2004), U.S. District Court, Northern District of Illinois (2004), and U.S. Court of Appeals for the Federal Circuit registered to practice before U.S. Patent and Trademar (2006). Educated at University of Notre Dame Law School (J.D., 2004) and University of Notre Dame (B.S. Mechanical, 2001). Active member of American Intellectual Property Law Association International Association of Intellectual Property Protection (AIPPI) Chicago Bar Association. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Mr. John R. Linzer is a lawyer practicing intellectual property, patents, patent applications and 3 other areas of law
  • John received a B.S. degree from University of Notre Dame in 2001, and has been licensed for 22 years
  • John practices at Quarles & Brady LLP in Chicago, IL

Practice Areas Explained

John R. Linzer's Areas of Practice

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

Patent Law

John R. Linzer is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Illinois →

Intellectual Property

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

John R. Linzer is one of 106,079 ip attorneys indexed nationally. Browse ip 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 John R. Linzer

Where is John R. Linzer's law office located?
John R. Linzer's law practice is located in Chicago, Illinois. The firm is Quarles & Brady LLP. You can contact the office directly through this profile page.
What practice areas does John R. Linzer handle?
John R. Linzer focuses on patent, ip. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John R. Linzer practiced law?
John R. Linzer has 22+ years of legal experience and has been licensed since 2004.
Where did John R. Linzer go to law school?
John R. Linzer earned their education at (J.D., 2004); (B.S. Mechanical, 2001).
How can I contact John R. Linzer for a consultation?
You can contact John R. Linzer 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.
University of Notre Dame Law School
- 2004
B.S. Mechanical
University of Notre Dame
- 2001

Bar Admissions

Illinois
Admitted: 2004
U.S. District Court, Northern District of Illinois
Admitted: 2004
U.S. Court of Appeals for the Federal Circuit registered to practice before U.S. Patent and Trademar
Admitted: 2006

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