Atty. Dennis John Duncan

Atty. Dennis John Duncan

Mr. Dennis John Duncan is a lawyer practicing patent application, patent infringement.

San Francisco San Francisco 25 yrs experience 25 year
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Profile Summary

About Dennis John Duncan at a glance

Dennis John Duncan is a patent attorney based in San Francisco, California. They have 25+ years of legal experience, licensed to practice since 2001. Admitted to practice in New Jersey (2001), District of Columbia (2007), and New York (2008). Educated at Seton Hall University (J.D., 2000) and Fairleigh Dickinson University B.A. (—). Serands clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Dennis John Duncan is a lawyer practicing patent application, patent infringement
  • Dennis received a B.A. degree from Fairleigh Dickinson University, and has been licensed for 25 years
  • Dennis practices in San Francisco, CA

Practice Areas Explained

Dennis John Duncan's Areas of Practice

Each practice area below reflects the types of cases Dennis John Duncan handles, with a brief overview of what that area of law covers.

Patent Law

Dennis John Duncan is one of 20,749 patent attorneys indexed nationally. Browse patent 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 Dennis John Duncan

Where is Dennis John Duncan's law office located?
Dennis John Duncan's law practice is located in San Francisco, California. You can contact the office directly through this profile page.
What practice areas does Dennis John Duncan handle?
Dennis John Duncan focuses on patent. Each practice area listed reflects experience handling cases of that type in California.
How long has Dennis John Duncan practiced law?
Dennis John Duncan has 25+ years of legal experience and has been licensed since 2001.
Where did Dennis John Duncan go to law school?
Dennis John Duncan earned their education at (J.D., 2000); (—).
How can I contact Dennis John Duncan for a consultation?
You can contact Dennis John Duncan 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.
Seton Hall University
- 2000
Fairleigh Dickinson University B.A.
- In Progress

Bar Admissions

New Jersey
Admitted: 2001
District of Columbia
Admitted: 2007
New York
Admitted: 2008

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