Atty. John Thaddeus Pienkos

Atty. John Thaddeus Pienkos

Atty. John Thaddeus Pienkos is a lawyer practicing intellectual property, patent application, corporate / incorporation.

Milwaukee Milwaukee 29 yrs experience 29 year
Call (414) 567-5954 Book Appointment

Profile Summary

About John Thaddeus Pienkos at a glance

John Thaddeus Pienkos is an Attorney based in Milwaukee, Wisconsin, practicing at Whyte Hirschboeck Dudek S.C.. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on formation, patent, and ip. Admitted to practice in Wisconsin (1997) and U.S. District Court, Eastern District of Wisconsin registered to practice before U.S. Patent and Tra (1998). Educated at Harvard Law School (J.D., 1997) and Marquette University (B.S.E.E., 1992). Recognitions include Peer Reviewed. Serands clients in Milwaukee, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Atty. John Thaddeus Pienkos is a lawyer practicing intellectual property, patent application, corporate / incorporation
  • John received a B.S.E.E. degree from Marquette University in 1992, and has been licensed for 29 years
  • John practices at Whyte Hirschboeck Dudek S.C. in Milwaukee, WI

Practice Areas Explained

John Thaddeus Pienkos's Areas of Practice

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

Business Formation

John Thaddeus Pienkos is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Wisconsin →

Patent Law

John Thaddeus Pienkos is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Wisconsin →

Intellectual Property

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

John Thaddeus Pienkos is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

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

Looking for additional Wisconsin attorneys? Browse all attorneys in Milwaukee or all attorneys in Wisconsin.

Frequently Asked

Common questions about John Thaddeus Pienkos

Where is John Thaddeus Pienkos's law office located?
John Thaddeus Pienkos's law practice is located in Milwaukee, Wisconsin. The firm is Whyte Hirschboeck Dudek S.C.. You can contact the office directly through this profile page.
What practice areas does John Thaddeus Pienkos handle?
John Thaddeus Pienkos focuses on formation, patent, ip. Each practice area listed reflects experience handling cases of that type in Wisconsin.
How long has John Thaddeus Pienkos practiced law?
John Thaddeus Pienkos has 29+ years of legal experience and has been licensed since 1997.
Where did John Thaddeus Pienkos go to law school?
John Thaddeus Pienkos earned their education at (J.D., 1997); (B.S.E.E., 1992).
How can I contact John Thaddeus Pienkos for a consultation?
You can contact John Thaddeus Pienkos 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 Thaddeus Pienkos received?
John Thaddeus Pienkos's notable recognition includes: Peer Reviewed.

Education

J.D.
Harvard Law School
- 1997
B.S.E.E.
Marquette University
- 1992

Awards

Peer Reviewed

Bar Admissions

Wisconsin
Admitted: 1997
U.S. District Court, Eastern District of Wisconsin registered to practice before U.S. Patent and Tra
Admitted: 1998

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