JC

James Chung-Yul Yoon, IP Attorney in Palo Alto, California

Over 31 years of legal practice · focused on IP, Litigation, and Real Estate · 4.6/5 rating from 1 verified client review

Practicing ip in Palo Alto since 1995.

31+
Years practicing
4.6 ★
1 client review
1
Bar admission

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Quick answer

James Chung-Yul Yoon is a partner based in Palo Alto, CA. The practice focuses on IP, Litigation, and Real Estate. James has over 31 years of legal experience. Currently practicing at Wilson Sonsini Goodrich & Rosati Professional Corporation. Rated 4.6 out of 5 from 1 client review.

Based in
Palo Alto, CA
Experience
over 31 years
Known for
IP · Litigation · Real Estate
  • Handles IP, Litigation, and Real Estate matters from Palo Alto, CA.
  • Over 31 years of practice as a licensed attorney.
  • Recognized with Peer Reviewed.

About James Chung-Yul Yoon: James Chung-Yul Yoon is a partner based in Palo Alto, CA. The practice focuses on IP, Litigation, and Real Estate. James has over 31 years of legal experience. Currently practicing at Wilson Sonsini Goodrich & Rosati Professional Corporation. Rated 4.6 out of 5 from 1 client review.

Areas of practice

Legal matters James takes on

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

IP cases in Palo Alto, California

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

Litigation cases in Palo Alto, California

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

Real Estate cases in Palo Alto, California

James takes real estate matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before James agrees to represent you.

Trade Secrets cases in Palo Alto, California

James takes trade secrets matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before James agrees to represent you.

Biography

Meet James Chung-Yul Yoon — ip lawyer in Palo Alto

James Chung-Yul Yoon is a partner based in Palo Alto, CA. The practice focuses on IP, Litigation, and Real Estate. James has over 31 years of legal experience. Currently practicing at Wilson Sonsini Goodrich & Rosati Professional Corporation. Rated 4.6 out of 5 from 1 client review.

James Chung-Yul Yoon is a lawyer practicing ip litigation, litigation, intellectual property and 3 other areas of law. James received a B.S.E.E. degree from GMI Engineering & Management Institute in 1990, and has been licensed for 31 years. James practices at Wilson Sonsini Goodrich & Rosati Professional Corporation in Palo Alto, CA.

Working with James on a ip matter

James Chung-Yul Yoon is a lawyer practicing ip litigation, litigation, intellectual property and 3 other areas of law. James received a B.S.E.E. degree from GMI Engineering & Management Institute in 1990, and has been licensed for 31 years. James practices at Wilson Sonsini Goodrich & Rosati Professional Corporation in Palo Alto, CA.

Clients James works with

James reviews new inquiries case-by-case for ip, litigation, and real estate matters in Palo Alto and the surrounding California area.

Credentials

Education, bar admissions, and languages

  • Stanford University Law School

    J.D. · 1993

  • GMI Engineering & Management Institute

    B.S.E.E. · 1990

Jurisdictions

James's state bar admissions

  • California U.S. Dist

    1995 · ACTIVE

James studied at J.D. in Stanford University Law School and B.S.E.E. in GMI Engineering & Management Institute.

Law school and academic background

James completed J.D. in Stanford University Law School and B.S.E.E. in GMI Engineering & Management Institute. Formal legal training is one signal of substantive knowledge — the day-to-day practice James runs in California is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

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

  • Peer Reviewed

Legal awards and honors

Peer Reviewed.

Locations

James Chung-Yul Yoon's office in Palo Alto

James's primary office is at 650 Page Mill Rd., Palo Alto, CA, 94304. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Wilson Sonsini Goodrich & Rosati Professional Corporation

650 Page Mill Rd.

Palo Alto, CA 94304

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Client feedback

Client reviews of James Chung-Yul Yoon — 4.6/5 rating from 1 verified client review

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

4.6

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once James Chung-Yul Yoon claims this profile.

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Hiring guide

How to hire James Chung-Yul Yoon — what to expect in your first consultation

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

Consultation formats and pricing

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

Questions to ask a ip attorney in Palo Alto, California

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 James

James 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. James confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

James'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 James Chung-Yul Yoon

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

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

  • Does James offer a free consultation?

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

  • How long do ip cases in California 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. James gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can James take my case if I'm outside Palo Alto?

    James is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — James 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 James?

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

  • Is James accepting new ip clients right now?

    James'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 Palo Alto, Los Angeles and San Francisco in California

James handles ip matters throughout California. Each city below is a direct link into the search page for verified ip attorneys in that community.

More counsel

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