Atty. John O. Tresansky

Atty. John O. Tresansky

John O. Tresansky is a lawyer practicing intellectual property, patent law, electrical intellectual property.

Alexandria Alexandria 71 yrs experience 71 year
Call (571) 670-6491 Book Appointment

Profile Summary

About John O. Tresansky at a glance

John O. Tresansky is a ip attorney based in Alexandria, Virginia. They have 71+ years of legal experience, licensed to practice since 1955. Admitted to practice in District of Columbia registered to practice before the U.S. Patent and Trademark Office (1955). Educated at Georgetown University (LL.B., 1954) and Catholic University of America (B.E.E., 1950). Serands clients in Alexandria, VA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John O. Tresansky is a lawyer practicing intellectual property, patent law, electrical intellectual property
  • John O. received a B.E.E. degree from Catholic University of America in 1950, and has been licensed for 71 years
  • John O. practices in Alexandria, VA

Practice Areas Explained

John O. Tresansky's Areas of Practice

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

Intellectual Property

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

John O. Tresansky is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Virginia →

Jurisdictional Context

Why local counsel matters in Virginia

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

Looking for additional Virginia attorneys? Browse all attorneys in Alexandria or all attorneys in Virginia.

Frequently Asked

Common questions about John O. Tresansky

Where is John O. Tresansky's law office located?
John O. Tresansky's law practice is located in Alexandria, Virginia. You can contact the office directly through this profile page.
What practice areas does John O. Tresansky handle?
John O. Tresansky focuses on ip. Each practice area listed reflects experience handling cases of that type in Virginia.
How long has John O. Tresansky practiced law?
John O. Tresansky has 71+ years of legal experience and has been licensed since 1955.
Where did John O. Tresansky go to law school?
John O. Tresansky earned their education at (LL.B., 1954); (B.E.E., 1950).
How can I contact John O. Tresansky for a consultation?
You can contact John O. Tresansky 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

LL.B.
Georgetown University
- 1954
B.E.E.
Catholic University of America
- 1950

Bar Admissions

District of Columbia registered to practice before the U.S. Patent and Trademark Office
Admitted: 1955

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