Atty. John Walter Treece

Atty. John Walter Treece

John Walter Treece is a lawyer practicing patent application, antitrust/competition, healthcare and 15 other areas of law. John received a B.A. degree from Harvard University in 1975, and has been licensed for 48 years.

Chicago Chicago 48 yrs experience 48 year
Call (970) 286-0899 Book Appointment

Antitrust & Competition & More Attorney · Serving Chicago, IL · 48+ Years Experience

Profile Summary

About John Walter Treece at a Glance

John Walter Treece is a Partner based in Chicago, Illinois, practicing at Sidley Austin LLP. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on patent, contracts, business, ip, and breach of contract. Admitted to practice in Illinois (1978), U.S. District Court, Northern District of Illinois (1978), U.S. District Court, Northern District of Illinois, including Trial Bar (1985), and U.S. Court of Appeals, Seventh Circuit (1996). Educated at Columbia University School of Law (J.D., 1978) and Harvard University (B.A., 1975). Recognitions include AV Preeminent. Serves clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About John Walter Treece

  • John Walter Treece is a lawyer practicing patent application, antitrust/competition, healthcare and 15 other areas of law
  • John received a B.A. degree from Harvard University in 1975, and has been licensed for 48 years
  • John practices at Sidley Austin LLP in Chicago, IL

Practice Areas Explained

John Walter Treece's Areas of Legal Practice

Each practice area below reflects the types of cases John Walter Treece handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.

Patent Law in Chicago

John Walter Treece is one of 20,632 patent attorneys indexed nationally. Browse patent attorneys in Illinois →

Contracts in Chicago

John Walter Treece is one of 76,101 contracts attorneys indexed nationally. Browse contracts attorneys in Illinois →

Business & Corporate Law in Chicago

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John Walter Treece is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Illinois →

Intellectual Property in Chicago

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

John Walter Treece is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Breach of Contract in Chicago

John Walter Treece is one of 5,880 breach of contract attorneys indexed nationally. Browse breach of contract attorneys in Illinois →

Jurisdictional Context

Why Local Counsel Matters in Chicago

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 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.

Chicago Courts and Legal Process

Choosing a Chicago-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About John Walter Treece

Where is John Walter Treece's law office located?
John Walter Treece's law practice is located in Chicago, Illinois. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does John Walter Treece handle?
John Walter Treece focuses on patent, contracts, business, ip, breach of contract. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John Walter Treece practiced law?
John Walter Treece has 48+ years of legal experience and has been licensed since 1978.
Where did John Walter Treece go to law school?
John Walter Treece earned their education at (J.D., 1978); (B.A., 1975).
How can I contact John Walter Treece for a consultation?
You can contact John Walter Treece 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 John Walter Treece received?
John Walter Treece's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Chicago Choose John Walter Treece

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Walter Treece's practice in the field of patent, contracts, business, ip, and breach of contract.

Decade-Tested Legal Experience

John Walter Treece brings 48+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in Illinois, U.S. District Court, Northern District of Illinois, and U.S. District Court, Northern District of Illinois, including Trial Bar, John Walter Treece can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering patent, contracts, and business, John Walter Treece can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Chicago

A Chicago-based practice means John Walter Treece attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues John Walter Treece Handles in Chicago

Below is a representative sample of the types of matters John Walter Treece has experience with under Illinois law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business
Trademark registration
IP
Copyright infringement defense
IP
Patent prosecution
IP
Trade secret protection
IP

This list is illustrative, not exhaustive. Contact John Walter Treece directly to discuss the specifics of your situation.

Search Reference

How People Find John Walter Treece Online

Prospective clients searching for legal help in Chicago commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like John Walter Treece.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with John Walter Treece directly.

Education & Law School Background

J.D.
Columbia University School of Law
- 1978
B.A.
Harvard University
- 1975

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Illinois
Admitted: 1978
U.S. District Court, Northern District of Illinois
Admitted: 1978
U.S. District Court, Northern District of Illinois, including Trial Bar
Admitted: 1985
U.S. Court of Appeals, Seventh Circuit
Admitted: 1996
U.S. Court of Appeals, Federal Circuit
Admitted: 2002
Indiana
Admitted: 2010

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