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David Yin, Appellate Attorney in Washington, District of Columbia

focused on Appellate, IP, and Patent

Washington, DC

Trusted appellate attorney serving Washington.

2
Bar admissions

Practices in

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Quick answer

David Yin is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Appellate, IP, and Patent.

Based in
Washington, DISTRICT OF COLUMBIA
Experience
attorney
Known for
Appellate · IP · Patent
  • Handles Appellate, IP, and Patent matters from Washington, DISTRICT OF COLUMBIA.
  • Recognized with Best Lawyers in America — Appellate Practice (2026).

About David Yin: David Yin is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Appellate, IP, and Patent.

Areas of practice

David's practice areas in Washington

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

Appellate cases in Washington, District of Columbia

David takes appellate 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 David agrees to represent you.

IP cases in Washington, District of Columbia

David 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 David agrees to represent you.

Patent cases in Washington, District of Columbia

David takes patent 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 David agrees to represent you.

Biography

David Yin, appellate attorney serving Washington

David Yin is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Appellate, IP, and Patent. David works from Washington, District of Columbia and takes on appellate matters across the region.

David Yin is a versatile trial and appellate advocate who represents the world’s leading technology, life sciences, and financial services companies in high-stakes litigation, arbitration and regulatory matters. He focuses his practice on complex litigation regarding intellectual property—including patent infringement, trade secret misappropriation, and licensing disputes. His cases have involved a diverse array of technologies, ranging from wireless communications and computer memory to molecular diagnostics and pulse oximetry. He represents clients in district courts across the country, before the U.S. International Trade Commission, and at the appellate level.

How David handles appellate matters

David Yin is a versatile trial and appellate advocate who represents the world’s leading technology, life sciences, and financial services companies in high-stakes litigation, arbitration and regulatory matters. He focuses his practice on complex litigation regarding intellectual property—including patent infringement, trade secret misappropriation, and licensing disputes. His cases have involved…

Who David represents

David reviews new inquiries case-by-case for appellate, ip, and patent matters in Washington and the surrounding District of Columbia area.

Credentials

Credentials — where David studied and practices

  • New York University

    J.D. · 2014

  • Columbia University

    BA · 2009

Jurisdictions

David's state bar admissions

  • New York, New York S

    ACTIVE

  • District of Columbia

    ACTIVE

David studied at J.D. in New York University and BA in Columbia University.

Law school and academic background

David completed J.D. in New York University and BA in Columbia University. Formal legal training is one signal of substantive knowledge — the day-to-day practice David runs in District of Columbia is where that training gets applied to real client questions.

Recognition

David's legal honors and published work

David has received 3 formal recognitions from bar associations, industry bodies, and peer-review services.

  • Best Lawyers in America — Appellate Practice

    2026

  • Best Lawyers in America — Litigation - Intellectual Property

    2026

  • Best Lawyers in America — Litigation - Patent

    2026

Legal awards and honors

Best Lawyers in America — Appellate Practice (2026). Best Lawyers in America — Litigation - Intellectual Property (2026). Best Lawyers in America — Litigation - Patent (2026).

Locations

David Yin's office in Washington

David's primary office is at 2100 Pennsylvania Avenue NW, Washington, District of Columbia, 20037. In-person meetings are by appointment; a phone intake usually comes first.

Main office

2100 Pennsylvania Avenue NW

Washington, District of Columbia 20037

Open in Google Maps

Client feedback

Client reviews of David Yin

David has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire David Yin — what to expect in your first consultation

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

Consultation formats and pricing

David charges for the initial consult. That fee is credited toward representation if you retain David'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; David will tell you what matters and what doesn't.

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

A short list to run through before you commit: How many appellate 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 David

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

Hourly rates, contingency fees, and flat-fee options

Every appellate 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. David confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about David Yin

  • How much does it cost to hire David for a appellate case?

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

  • Does David offer a free consultation?

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

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

    Simple appellate 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. David gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

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

    David 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 — David 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 David?

    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. David will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is David accepting new appellate clients right now?

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

Areas served

Appellate attorneys serving Washington and Belize City in District of Columbia

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

More counsel

If David's intake is full or the fit isn't right, these appellate attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.