Atty. Jason Jongjin Yoo

Atty. Jason Jongjin Yoo

Jason Jongjin Yoo is a lawyer practicing patents, intellectual property, intellectual property law and 2 other areas of law. Jason received a B.S. degree from Seoul National University, Seoul, Korea in 1991, and has been licensed for 19 years.

Sunnyvale Sunnyvale 19 yrs experience 19 year
Call (669) 330-1806 Book Appointment

Profile Summary

About Jason Jongjin Yoo at a glance

Jason Jongjin Yoo is a TSMC Tech. based in Sunnyvale, California. They have 19+ years of legal experience, licensed to practice since 2007. Their practice focuses on patent, immigration, real estate, and ip. Admitted to practice in California registered to practice before U.S. Patent and Trademark Office (2007). Educated at University of California, Hastings College of the Law (J.D., 2007) and Seoul National University, Seoul, Korea (B.S. University, 1991). Provides legal services in Korean. Serands clients in Sunnyvale, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jason Jongjin Yoo is a lawyer practicing patents, intellectual property, intellectual property law and 2 other areas of law
  • Jason received a B.S. degree from Seoul National University, Seoul, Korea in 1991, and has been licensed for 19 years
  • Jason practices in Sunnyvale, CA

Practice Areas Explained

Jason Jongjin Yoo's Areas of Practice

Each practice area below reflects the types of cases Jason Jongjin Yoo handles, with a brief overview of what that area of law covers.

Patent Law

Jason Jongjin Yoo is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Immigration Law

Immigration attorneys help with green cards, visas, citizenship, asylum, and deportation defense. Find a verified immigration lawyer for your case.

Jason Jongjin Yoo is one of 40,633 immigration attorneys indexed nationally. Browse immigration attorneys in California →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Jason Jongjin Yoo is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in California →

Intellectual Property

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

Jason Jongjin Yoo is one of 106,079 ip attorneys indexed nationally. Browse ip 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 Sunnyvale 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 Sunnyvale or all attorneys in California.

Frequently Asked

Common questions about Jason Jongjin Yoo

Where is Jason Jongjin Yoo's law office located?
Jason Jongjin Yoo's law practice is located in Sunnyvale, California. You can contact the office directly through this profile page.
What practice areas does Jason Jongjin Yoo handle?
Jason Jongjin Yoo focuses on patent, immigration, real estate, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has Jason Jongjin Yoo practiced law?
Jason Jongjin Yoo has 19+ years of legal experience and has been licensed since 2007.
What languages does Jason Jongjin Yoo speak?
Jason Jongjin Yoo provides legal services in Korean. Bilingual representation can be especially important when contracts, testimony, or court filings require accurate translation.
Where did Jason Jongjin Yoo go to law school?
Jason Jongjin Yoo earned their education at (J.D., 2007); (B.S. University, 1991).
How can I contact Jason Jongjin Yoo for a consultation?
You can contact Jason Jongjin Yoo 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 California, Hastings College of the Law
- 2007
B.S. University
Seoul National University, Seoul, Korea
- 1991

Languages

Bar Admissions

California registered to practice before U.S. Patent and Trademark Office
Admitted: 2007

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