Atty. William Michael Hienz III

Atty. William Michael Hienz III

William Michael Hienz III is a lawyer practicing intellectual property, patent law, electro-mechanical patents and 5 other areas of law. William received a B.S. degree from University of Illinois in 1988, and has been licensed for 33 years.

Eagan Eagan 33 yrs experience 33 year
Call (651) 477-8481 Book Appointment

Profile Summary

About William Michael Hienz III at a glance

William Michael Hienz III is a Target Brands, Inc. based in Eagan, Minnesota. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on patent, trademark, ip, and litigation. Admitted to practice in Virginia (1993), U.S. Court of Appeals for the Federal Circuit and U.S. Court of Appeals, Fourth Circuit (1993), and Minnesota registered to practice before U.S. Patent and Trademark Office (1995). Educated at George Washington University (J.D., 1993) and University of Illinois (B.S., 1988). Serands clients in Eagan, MN and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Michael Hienz III is a lawyer practicing intellectual property, patent law, electro-mechanical patents and 5 other areas of law
  • William received a B.S. degree from University of Illinois in 1988, and has been licensed for 33 years
  • William practices in Eagan, MN

Practice Areas Explained

William Michael Hienz III's Areas of Practice

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

Patent Law

William Michael Hienz III is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Minnesota →

Trademark Law

William Michael Hienz III is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Minnesota →

Intellectual Property

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

William Michael Hienz III is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Minnesota →

Civil Litigation

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

William Michael Hienz III is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Minnesota →

Jurisdictional Context

Why local counsel matters in Minnesota

Practicing law in Minnesota. Legal matters in Minnesota are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Eagan are typically filed in the local municipal court or the appropriate Minnesota state district court, depending on subject matter and amount in controversy. An attorney licensed in Minnesota 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 Minnesota courts without local counsel or pro hac vice admission.

Looking for additional Minnesota attorneys? Browse all attorneys in Eagan or all attorneys in Minnesota.

Frequently Asked

Common questions about William Michael Hienz III

Where is William Michael Hienz III's law office located?
William Michael Hienz III's law practice is located in Eagan, Minnesota. You can contact the office directly through this profile page.
What practice areas does William Michael Hienz III handle?
William Michael Hienz III focuses on patent, trademark, ip, litigation. Each practice area listed reflects experience handling cases of that type in Minnesota.
How long has William Michael Hienz III practiced law?
William Michael Hienz III has 33+ years of legal experience and has been licensed since 1993.
Where did William Michael Hienz III go to law school?
William Michael Hienz III earned their education at (J.D., 1993); (B.S., 1988).
How can I contact William Michael Hienz III for a consultation?
You can contact William Michael Hienz III 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.
George Washington University
- 1993
B.S.
University of Illinois
- 1988

Bar Admissions

Virginia
Admitted: 1993
U.S. Court of Appeals for the Federal Circuit and U.S. Court of Appeals, Fourth Circuit
Admitted: 1993
Minnesota registered to practice before U.S. Patent and Trademark Office
Admitted: 1995

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