Atty. David L Barnes

Atty. David L Barnes

David L Barnes is a lawyer practicing business, intellectual property, patents and 2 other areas of law. David received a B.S. degree from University of Utah in 1996, and has been licensed for 24 years.

Rossmoor Rossmoor 24 yrs experience 24 year
Call (626) 268-1613 Book Appointment

Profile Summary

About David L Barnes at a glance

David L Barnes is a patent, business, and ip attorney based in Rossmoor, California. They have 24+ years of legal experience, licensed to practice since 2002. Admitted to practice in Connecticut (2002) and New York registered to practice before U.S. Patent and Trademark Office (2003). Educated at Pace University (J.D., 2002) and University of Utah (B.S., 1996). Serands clients in Rossmoor, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David L Barnes is a lawyer practicing business, intellectual property, patents and 2 other areas of law
  • David received a B.S. degree from University of Utah in 1996, and has been licensed for 24 years
  • David practices in Rossmoor, CA

Practice Areas Explained

David L Barnes's Areas of Practice

Each practice area below reflects the types of cases David L Barnes handles, with a brief overview of what that area of law covers.

Patent Law

David L Barnes is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

David L Barnes is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Intellectual Property

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

David L Barnes 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 Rossmoor 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 Rossmoor or all attorneys in California.

Frequently Asked

Common questions about David L Barnes

Where is David L Barnes's law office located?
David L Barnes's law practice is located in Rossmoor, California. You can contact the office directly through this profile page.
What practice areas does David L Barnes handle?
David L Barnes focuses on patent, business, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has David L Barnes practiced law?
David L Barnes has 24+ years of legal experience and has been licensed since 2002.
Where did David L Barnes go to law school?
David L Barnes earned their education at (J.D., 2002); (B.S., 1996).
How can I contact David L Barnes for a consultation?
You can contact David L Barnes 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.
Pace University
- 2002
B.S.
University of Utah
- 1996

Bar Admissions

Connecticut
Admitted: 2002
New York registered to practice before U.S. Patent and Trademark Office
Admitted: 2003

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