Atty. Brian Ashley Rosenthal

Atty. Brian Ashley Rosenthal

Mr. Brian Ashley Rosenthal is a lawyer practicing intellectual property, counseling & prosecution, patent litigation and 3 other areas of law.

Washington Washington 25 yrs experience 25 year
Call (202) 770-4377 Book Appointment

Profile Summary

About Brian Ashley Rosenthal at a glance

Brian Ashley Rosenthal is a Partner based in Washington, District of Columbia, practicing at Mayer Brown LLP. They have 25+ years of legal experience, licensed to practice since 2001. Their practice focuses on patent, trademark, ip, and trade secrets. Admitted to practice in New York (2001), District of Columbia (2002), US District Court for the District of Columbia (2009), and US Court of Appeals for the Federal Circuit (2011). Educated at University of Western Ontario (B.Sc. University, 1997) and Cornell Law School J.D. magna cum laude Cornell Law School J.D. 2000 Order of the Coif (—). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Brian Ashley Rosenthal is a lawyer practicing intellectual property, counseling & prosecution, patent litigation and 3 other areas of law
  • Brian received a degree from University of Western Ontario in 1997, and has been licensed for 25 years
  • Brian practices at Mayer Brown LLP in Washington, DC and 1 other location

Practice Areas Explained

Brian Ashley Rosenthal's Areas of Practice

Each practice area below reflects the types of cases Brian Ashley Rosenthal handles, with a brief overview of what that area of law covers.

Patent Law

Brian Ashley Rosenthal is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in District of Columbia →

Trademark Law

Brian Ashley Rosenthal is one of 23,222 trademark attorneys indexed nationally. Browse trademark 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.

Brian Ashley Rosenthal is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Trade Secrets

Brian Ashley Rosenthal is one of 6,644 trade secrets attorneys indexed nationally. Browse trade secrets 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 Brian Ashley Rosenthal

Where is Brian Ashley Rosenthal's law office located?
Brian Ashley Rosenthal's law practice is located in Washington, District of Columbia. The firm is Mayer Brown LLP. You can contact the office directly through this profile page.
What practice areas does Brian Ashley Rosenthal handle?
Brian Ashley Rosenthal focuses on patent, trademark, ip, trade secrets. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Brian Ashley Rosenthal practiced law?
Brian Ashley Rosenthal has 25+ years of legal experience and has been licensed since 2001.
Where did Brian Ashley Rosenthal go to law school?
Brian Ashley Rosenthal earned their education at (B.Sc. University, 1997); (—).
How can I contact Brian Ashley Rosenthal for a consultation?
You can contact Brian Ashley Rosenthal 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

B.Sc. University
University of Western Ontario
- 1997
Cornell Law School J.D. magna cum laude Cornell Law School J.D. 2000 Order of the Coif
- In Progress

Bar Admissions

New York
Admitted: 2001
District of Columbia
Admitted: 2002
US District Court for the District of Columbia
Admitted: 2009
US Court of Appeals for the Federal Circuit
Admitted: 2011
US Court of Federal Claims
Admitted: 2011
US District Court for the Western District of Tennessee
Admitted: 2013

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