Atty. Won-Sik Yoon

Atty. Won-Sik Yoon

Won-Sik Yoon is a lawyer practicing litigation, licensing, patent application. Won-Sik received a B.S. degree from Seoul National University in 1981, and has been licensed for 37 years.

Los Angeles Los Angeles 37 yrs experience 37 year
Call (213) 603-9903 Book Appointment

Profile Summary

About Won-Sik Yoon at a glance

Won-Sik Yoon is a patent, ip, and litigation attorney based in Los Angeles, California. They have 37+ years of legal experience, licensed to practice since 1989. Admitted to practice in Korea (1989) and California (2002). Educated at University of Washington School of Law, Seattle, USA (LL.M., 1999) and Seoul National University (B.S. Economics, 1981). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Won-Sik Yoon is a lawyer practicing litigation, licensing, patent application
  • Won-Sik received a B.S. degree from Seoul National University in 1981, and has been licensed for 37 years
  • Won-Sik practices in Los Angeles, CA

Practice Areas Explained

Won-Sik Yoon's Areas of Practice

Each practice area below reflects the types of cases Won-Sik Yoon handles, with a brief overview of what that area of law covers.

Patent Law

Won-Sik Yoon is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Won-Sik Yoon is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Won-Sik Yoon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Los Angeles are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California 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 California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.

Frequently Asked

Common questions about Won-Sik Yoon

Where is Won-Sik Yoon's law office located?
Won-Sik Yoon's law practice is located in Los Angeles, California. You can contact the office directly through this profile page.
What practice areas does Won-Sik Yoon handle?
Won-Sik Yoon focuses on patent, ip, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Won-Sik Yoon practiced law?
Won-Sik Yoon has 37+ years of legal experience and has been licensed since 1989.
Where did Won-Sik Yoon go to law school?
Won-Sik Yoon earned their education at (LL.M., 1999); (B.S. Economics, 1981).
How can I contact Won-Sik Yoon for a consultation?
You can contact Won-Sik Yoon 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

LL.M.
University of Washington School of Law, Seattle, USA
- 1999
B.S. Economics
Seoul National University
- 1981

Bar Admissions

Korea
Admitted: 1989
California
Admitted: 2002

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