Atty. John J. Feldhaus

Atty. John J. Feldhaus

John J. Feldhaus is a lawyer practicing ip litigation, japan, patent litigation and 1 other area of law.

Washington Washington 46 yrs experience 46 year
Call (404) 689-5892 Book Appointment

Profile Summary

About John J. Feldhaus at a glance

John J. Feldhaus is a Partner based in Washington, District of Columbia, practicing at Foley & Lardner LLP. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on patent, trademark, copyright, ip, and litigation. Admitted to practice in Virginia International Trade Commission (1980) and District of Columbia U.S. District Court for the Eastern District of Virginia and the District of Co (1999). Educated at George Mason University School of Law (J.D., 1980) and Rensselaer Polytechnic Institute (B.S. Electrical, 1970). Recognitions include AV Preeminent. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. Feldhaus is a lawyer practicing ip litigation, japan, patent litigation and 1 other area of law
  • John J. received a B.S. degree from Rensselaer Polytechnic Institute in 1970, and has been licensed for 46 years
  • John J. practices at Foley & Lardner LLP in Washington, DC

Practice Areas Explained

John J. Feldhaus's Areas of Practice

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

Patent Law

John J. Feldhaus is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in District of Columbia →

Trademark Law

John J. Feldhaus is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in District of Columbia →

Copyright Law

John J. Feldhaus is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in District of Columbia →

Intellectual Property

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

John J. Feldhaus is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Civil Litigation

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

John J. Feldhaus is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about John J. Feldhaus

Where is John J. Feldhaus's law office located?
John J. Feldhaus's law practice is located in Washington, District of Columbia. The firm is Foley & Lardner LLP. You can contact the office directly through this profile page.
What practice areas does John J. Feldhaus handle?
John J. Feldhaus focuses on patent, trademark, copyright, ip, litigation. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John J. Feldhaus practiced law?
John J. Feldhaus has 46+ years of legal experience and has been licensed since 1980.
Where did John J. Feldhaus go to law school?
John J. Feldhaus earned their education at (J.D., 1980); (B.S. Electrical, 1970).
How can I contact John J. Feldhaus for a consultation?
You can contact John J. Feldhaus 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 J. Feldhaus received?
John J. Feldhaus's notable recognition includes: AV Preeminent.

Education

J.D.
George Mason University School of Law
- 1980
B.S. Electrical
Rensselaer Polytechnic Institute
- 1970

Awards

AV Preeminent

Bar Admissions

Virginia International Trade Commission
Admitted: 1980
District of Columbia U.S. District Court for the Eastern District of Virginia and the District of Co
Admitted: 1999

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