Atty. David Lloyd Hayes

Atty. David Lloyd Hayes

Mr. David Lloyd Hayes is a lawyer practicing copyright litigation, intellectual property, open source and 5 other areas of law.

San Francisco San Francisco 40 yrs experience 40 year
Call (628) 285-0023 Book Appointment

Profile Summary

About David Lloyd Hayes at a glance

David Lloyd Hayes is an Intellectual Property Group based in San Francisco, California, practicing at Fenwick And West Llp. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on patent, trademark, copyright, real estate, and ip. Admitted to practice in California (1986) and District of Columbia registered to practice before U.S. Patent and Trademark Office (2002). Educated at Harvard University (J.D., 1984) and Rice University (B.S. Electrical, 1978). Recognitions include AV Preeminent. Serands clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. David Lloyd Hayes is a lawyer practicing copyright litigation, intellectual property, open source and 5 other areas of law
  • David received a B.S. degree from Rice University in 1978, and has been licensed for 40 years
  • David practices at Fenwick & West LLP in San Francisco, CA

Practice Areas Explained

David Lloyd Hayes's Areas of Practice

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

Patent Law

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

Trademark Law

David Lloyd Hayes is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in California →

Copyright Law

David Lloyd Hayes is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in California →

Real Estate Law

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

David Lloyd Hayes 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.

David Lloyd Hayes 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 San Francisco 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 San Francisco or all attorneys in California.

Frequently Asked

Common questions about David Lloyd Hayes

Where is David Lloyd Hayes's law office located?
David Lloyd Hayes's law practice is located in San Francisco, California. The firm is Fenwick And West Llp. You can contact the office directly through this profile page.
What practice areas does David Lloyd Hayes handle?
David Lloyd Hayes focuses on patent, trademark, copyright, real estate, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has David Lloyd Hayes practiced law?
David Lloyd Hayes has 40+ years of legal experience and has been licensed since 1986.
Where did David Lloyd Hayes go to law school?
David Lloyd Hayes earned their education at (J.D., 1984); (B.S. Electrical, 1978).
How can I contact David Lloyd Hayes for a consultation?
You can contact David Lloyd Hayes 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.
What awards or recognition has David Lloyd Hayes received?
David Lloyd Hayes's notable recognition includes: AV Preeminent.

Education

J.D.
Harvard University
- 1984
B.S. Electrical
Rice University
- 1978

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1986
District of Columbia registered to practice before U.S. Patent and Trademark Office
Admitted: 2002

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