Atty. David William Hannon

Atty. David William Hannon

David William Hannon is a lawyer practicing intellectual property & technology, patent infringement, patent application and 4 other areas of law. David received a B.S. degree from Northwestern University in 2002, and has been licensed for 21 years.

Chicago Chicago 21 yrs experience 21 year
Call (872) 351-5427 Book Appointment

Profile Summary

About David William Hannon at a glance

David William Hannon is a patent, trademark, copyright, and ip attorney based in Chicago, Illinois. They have 21+ years of legal experience, licensed to practice since 2005. Admitted to practice in Michigan (2005) and Illinois U.S. District Court for the Eastern District of Michigan U.S. District Court for the Northe (2007). Educated at University of Michigan Law School (J.D., 2005) and Northwestern University (B.S. Mechanical, 2002). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David William Hannon is a lawyer practicing intellectual property & technology, patent infringement, patent application and 4 other areas of law
  • David received a B.S. degree from Northwestern University in 2002, and has been licensed for 21 years
  • David practices in Chicago, IL

Practice Areas Explained

David William Hannon's Areas of Practice

Each practice area below reflects the types of cases David William Hannon handles, with a brief overview of what that area of law covers.

Patent Law

David William Hannon is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Illinois →

Trademark Law

David William Hannon is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Illinois →

Copyright Law

David William Hannon 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.

David William Hannon 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 David William Hannon

Where is David William Hannon's law office located?
David William Hannon's law practice is located in Chicago, Illinois. You can contact the office directly through this profile page.
What practice areas does David William Hannon handle?
David William Hannon focuses on patent, trademark, copyright, ip. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has David William Hannon practiced law?
David William Hannon has 21+ years of legal experience and has been licensed since 2005.
Where did David William Hannon go to law school?
David William Hannon earned their education at (J.D., 2005); (B.S. Mechanical, 2002).
How can I contact David William Hannon for a consultation?
You can contact David William Hannon 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 Michigan Law School
- 2005
B.S. Mechanical
Northwestern University
- 2002

Bar Admissions

Michigan
Admitted: 2005
Illinois U.S. District Court for the Eastern District of Michigan U.S. District Court for the Northe
Admitted: 2007

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