Atty. William Patrick Oberhardt

Atty. William Patrick Oberhardt

William Patrick Oberhardt is a lawyer practicing intellectual property, patents, trademarks and 9 other areas of law. William received a B.S.M.E. degree from University of Notre Dame in 1975, and has been licensed for 48 years.

Chicago Chicago 48 yrs experience 48 year
Call (872) 351-5460 Book Appointment

Profile Summary

About William Patrick Oberhardt at a glance

William Patrick Oberhardt is a Member based in Chicago, Illinois, practicing at William P. Oberhardt, LLC. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on patent, trademark, copyright, ip, and trade secrets. Admitted to practice in Illinois registered to practice before U.S. Patent and Trademark Office (1978) and U.S. District Court, Northern District of Illinois including Trial Bar, U.S. Court of Appeals, Seven (1978). Educated at DePaul University (J.D., 1978) and University of Notre Dame (B.S.M.E., 1975). Recognitions include AV Preeminent. Active member of Chicago, Federal Circuit and American Bar Associations American Intellectual Property Law Association Intellectual Property Law Association of Chicago. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Patrick Oberhardt is a lawyer practicing intellectual property, patents, trademarks and 9 other areas of law
  • William received a B.S.M.E. degree from University of Notre Dame in 1975, and has been licensed for 48 years
  • William practices at William P. Oberhardt, LLC in Chicago, IL

Practice Areas Explained

William Patrick Oberhardt's Areas of Practice

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

Patent Law

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

Trademark Law

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

Copyright Law

William Patrick Oberhardt 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.

William Patrick Oberhardt is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Trade Secrets

William Patrick Oberhardt is one of 6,644 trade secrets attorneys indexed nationally. Browse trade secrets 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 William Patrick Oberhardt

Where is William Patrick Oberhardt's law office located?
William Patrick Oberhardt's law practice is located in Chicago, Illinois. The firm is William P. Oberhardt, LLC. You can contact the office directly through this profile page.
What practice areas does William Patrick Oberhardt handle?
William Patrick Oberhardt focuses on patent, trademark, copyright, ip, trade secrets. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has William Patrick Oberhardt practiced law?
William Patrick Oberhardt has 48+ years of legal experience and has been licensed since 1978.
Where did William Patrick Oberhardt go to law school?
William Patrick Oberhardt earned their education at (J.D., 1978); (B.S.M.E., 1975).
How can I contact William Patrick Oberhardt for a consultation?
You can contact William Patrick Oberhardt 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 William Patrick Oberhardt received?
William Patrick Oberhardt's notable recognition includes: AV Preeminent.

Education

J.D.
DePaul University
- 1978
B.S.M.E.
University of Notre Dame
- 1975

Awards

AV Preeminent

Bar Admissions

Illinois registered to practice before U.S. Patent and Trademark Office
Admitted: 1978
U.S. District Court, Northern District of Illinois including Trial Bar, U.S. Court of Appeals, Seven
Admitted: 1978

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