BP

Brian Patrick O'Shaughnessy, IP Attorney in Washington, District of Columbia

Over 40 years of legal practice · focused on IP and Litigation · 5.0/5 rating from 1 verified client review

ShareholderatRatnerPrestia A Professional Corporation

Washington, DC

Practicing ip in Washington since 1986.

40+
Years practicing
5.0 ★
1 client review
4
Bar admissions

Practices in

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Quick answer

Brian Patrick O'Shaughnessy is a shareholder based in Washington, DC. The practice focuses on IP and Litigation. Brian has over 40 years of legal experience. Currently practicing at RatnerPrestia A Professional Corporation. Rated 5.0 out of 5 from 1 client review.

Based in
Washington, DC
Experience
over 40 years
Known for
IP · Litigation
  • Handles IP and Litigation matters from Washington, DC.
  • Over 40 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Brian Patrick O'Shaughnessy: Brian Patrick O'Shaughnessy is a shareholder based in Washington, DC. The practice focuses on IP and Litigation. Brian has over 40 years of legal experience. Currently practicing at RatnerPrestia A Professional Corporation. Rated 5.0 out of 5 from 1 client review.

Areas of practice

Legal matters Brian takes on

Brian concentrates on ip and litigation. Each area below outlines the kind of case Brian handles, typical outcomes to expect, and how the intake process starts.

IP cases in Washington, District of Columbia

Brian takes ip matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Brian agrees to represent you.

Litigation cases in Washington, District of Columbia

Brian takes litigation matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Brian agrees to represent you.

Biography

Meet Brian Patrick O'Shaughnessy — ip lawyer in Washington

Brian Patrick O'Shaughnessy is a shareholder based in Washington, DC. The practice focuses on IP and Litigation. Brian has over 40 years of legal experience. Currently practicing at RatnerPrestia A Professional Corporation. Rated 5.0 out of 5 from 1 client review.

Brian Patrick O'Shaughnessy is a lawyer practicing intellectual property, technology licensing, patent procurement and litigation. Brian received a degree from Rochester Institute of Technology in 1981, and has been licensed for 40 years. Brian practices at RatnerPrestia A Professional Corporation in Washington, DC.

Brian's approach to ip cases

Brian Patrick O'Shaughnessy is a lawyer practicing intellectual property, technology licensing, patent procurement and litigation. Brian received a degree from Rochester Institute of Technology in 1981, and has been licensed for 40 years. Brian practices at RatnerPrestia A Professional Corporation in Washington, DC.

Clients Brian works with

Brian reviews new inquiries case-by-case for ip and litigation matters in Washington and the surrounding District of Columbia area.

Credentials

Education, bar admissions, and languages

  • Syracuse University College of Law

    J.D. · 1986

  • Rochester Institute of Technology

    B.S.Ch. Rochester · 1981

Jurisdictions

Brian's state bar admissions

  • Virginia U.S. Distri

    1998 · ACTIVE

  • District of Columbia

    1993 · ACTIVE

  • North Carolina

    1990 · ACTIVE

  • Illinois

    1986 · ACTIVE

Brian studied at J.D. in Syracuse University College of Law and B.S.Ch. Rochester in Rochester Institute of Technology.

Law school and academic background

Brian completed J.D. in Syracuse University College of Law and B.S.Ch. Rochester in Rochester Institute of Technology. Formal legal training is one signal of substantive knowledge — the day-to-day practice Brian runs in District of Columbia is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

Brian has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Affiliations

Brian's professional memberships and bar associations

  • American Bar Association American Intellectual Property Law Association Licensing Executives Society

    Board of Trustees · membership

Locations

Brian Patrick O'Shaughnessy's office in Washington

Brian's primary office is at 10th Fl., Ste. 1000, 1250 I St. N.W., Washington, DC, 20005. In-person meetings are by appointment; a phone intake usually comes first.

Main office

RatnerPrestia A Professional Corporation

10th Fl., Ste. 1000, 1250 I St. N.W.

Washington, DC 20005

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Client feedback

Client reviews of Brian Patrick O'Shaughnessy — 5.0/5 rating from 1 verified client review

Every review below is from a verified client of Brian. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing ip attorneys in Washington.

5.0

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Brian Patrick O'Shaughnessy claims this profile.

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Hiring guide

How to hire Brian Patrick O'Shaughnessy — what to expect in your first consultation

Working with a new ip attorney should feel structured. Here's how the first two conversations with Brian usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Brian charges for the initial consult. That fee is credited toward representation if you retain Brian's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Brian will tell you what matters and what doesn't.

Questions to ask a ip attorney in Washington, District of Columbia

A short list to run through before you commit: How many ip matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Brian

Brian discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in ip practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every ip matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Brian confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Brian's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many ip practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Brian Patrick O'Shaughnessy

  • How much does it cost to hire Brian for a ip case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Brian walks through the likely range during the consult so there are no surprises.

  • Does Brian offer a free consultation?

    Brian charges for the initial consult; that fee is credited toward representation if you retain Brian's office. Some ip attorneys offer free consults — check Brian's current terms during booking.

  • How long do ip cases in District of Columbia typically take?

    Simple ip matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Brian gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Brian take my case if I'm outside Washington?

    Brian is licensed in District of Columbia. Matters governed by District of Columbia law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Brian will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Brian?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Brian will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Brian accepting new ip clients right now?

    Brian's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

IP attorneys serving Washington and Belize City in District of Columbia

Brian handles ip matters throughout District of Columbia. Each city below is a direct link into the search page for verified ip attorneys in that community.