Atty. William C Cheng

Atty. William C Cheng

William C Cheng is a lawyer practicing intellectual property, technology & science. William received a B.A. degree from Baylor University, and has been licensed for 15 years.

Sunnyvale Sunnyvale 15 J. Erfahrung 15 year
Call (650) 517-0420 Book Appointment

Profile Summary

About William C Cheng at a glance

William C Cheng is an Associate based in Sunnyvale, California, practicing at Downey Brand LLP. They have 15+ years of legal experience, licensed to practice since 2011. Their practice focuses on ip. Admitted to practice in California (2011). Educated at University of San Diego School of Law J.D. (—) and Baylor University B.A. (—). Serands clients in Sunnyvale, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • William C Cheng is a lawyer practicing intellectual property, technology & science
  • William received a B.A. degree from Baylor University, and has been licensed for 15 years
  • William practices at Downey Brand LLP in Sunnyvale, CA

Practice Areas Explained

William C Cheng's Areas of Practice

Each practice area below reflects the types of cases William C Cheng handles, with a brief overview of what that area of law covers.

Intellectual Property

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

William C Cheng 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 William C Cheng

Where is William C Cheng's law office located?
William C Cheng's law practice is located in Sunnyvale, California. The firm is Downey Brand LLP. You can contact the office directly through this profile page.
What practice areas does William C Cheng handle?
William C Cheng focuses on ip. Each practice area listed reflects experience handling cases of that type in California.
How long has William C Cheng practiced law?
William C Cheng has 15+ years of legal experience and has been licensed since 2011.
Where did William C Cheng go to law school?
William C Cheng earned their education at (—); (—).
How can I contact William C Cheng for a consultation?
You can contact William C Cheng 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

University of San Diego School of Law J.D.
- In Bearbeitung
Baylor University B.A.
- In Bearbeitung

Bar Admissions

California
Admitted: 2011

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