Atty. Douglas Eric Ringel

Atty. Douglas Eric Ringel

Douglas Eric Ringel is a lawyer practicing intellectual property litigation, patents, ethics / professional responsibility. Douglas received a B.S. degree from Cornell University in 1988, and has been licensed for 33 years.

Washington Washington 33 Years Experience 33 year
Call (650) 517-0420

Profile Summary

About Douglas Eric Ringel at a glance

Douglas Eric Ringel is an Attorney based in Washington, District of Columbia, practicing at Potomac Law Group, PLLC. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on patent and ip. Admitted to practice in Florida (1993), New York (1993), and District of Columbia registered to practice before U.S. Patent and Trademark Office (2002). Educated at University of Michigan (J.D., 1992) and Cornell University (B.S., 1988). Active member of American Intellectual Property Law Association. Serves clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Douglas Eric Ringel is a lawyer practicing intellectual property litigation, patents, ethics / professional responsibility
  • Douglas received a B.S. degree from Cornell University in 1988, and has been licensed for 33 years
  • Douglas practices at Potomac Law Group, PLLC in Washington, DC

Practice Areas Explained

Douglas Eric Ringel's Areas of Practice

Each practice area below reflects the types of cases Douglas Eric Ringel handles, with a brief overview of what that area of law covers.

Patent Law

Douglas Eric Ringel is one of 18,874 patent attorneys indexed nationally. Browse patent 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.

Douglas Eric Ringel is one of 94,505 ip attorneys indexed nationally. Browse ip 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 venue, 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 Douglas Eric Ringel

Where is Douglas Eric Ringel's law office located?
Douglas Eric Ringel's law practice is located in Washington, District of Columbia. The firm is Potomac Law Group, PLLC. You can contact the office directly through this profile page.
What practice areas does Douglas Eric Ringel handle?
Douglas Eric Ringel focuses on patent, ip. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Douglas Eric Ringel practiced law?
Douglas Eric Ringel has 33+ years of legal experience and has been licensed since 1993.
Where did Douglas Eric Ringel go to law school?
Douglas Eric Ringel earned their education at (J.D., 1992); (B.S., 1988).
How can I contact Douglas Eric Ringel for a consultation?
You can contact Douglas Eric Ringel 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.
University of Michigan
- 1992
B.S.
Cornell University
- 1988

Bar Admissions

Florida
Admitted: 1993
New York
Admitted: 1993
District of Columbia registered to practice before U.S. Patent and Trademark Office
Admitted: 2002

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