Atty. Sean Daniel O'Brien

Atty. Sean Daniel O'Brien

Mr. Sean Daniel O'Brien is a lawyer practicing intellectual property, patent application, trademark application and 2 other areas of law.

Santa Monica Santa Monica 21 yrs experience 21 year
Call (310) 878-6404 Book Appointment

Profile Summary

About Sean Daniel O'Brien at a glance

Sean Daniel O'Brien is a patent, trademark, copyright, and ip attorney based in Santa Monica, California. They have 21+ years of legal experience, licensed to practice since 2005. Admitted to practice in California (2005) and Oregon (2014). Educated at Loyola Law School, Loyola Marymount University (JD, 2005). Serands clients in Santa Monica, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Sean Daniel O'Brien is a lawyer practicing intellectual property, patent application, trademark application and 2 other areas of law
  • Sean has been licensed for 21 years
  • Sean practices in Santa Monica, CA

Practice Areas Explained

Sean Daniel O'Brien's Areas of Practice

Each practice area below reflects the types of cases Sean Daniel O'Brien handles, with a brief overview of what that area of law covers.

Patent Law

Sean Daniel O'Brien is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Trademark Law

Sean Daniel O'Brien is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in California →

Copyright Law

Sean Daniel O'Brien is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in California →

Intellectual Property

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

Sean Daniel O'Brien 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 Santa Monica 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 Santa Monica or all attorneys in California.

Frequently Asked

Common questions about Sean Daniel O'Brien

Where is Sean Daniel O'Brien's law office located?
Sean Daniel O'Brien's law practice is located in Santa Monica, California. You can contact the office directly through this profile page.
What practice areas does Sean Daniel O'Brien handle?
Sean Daniel O'Brien focuses on patent, trademark, copyright, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has Sean Daniel O'Brien practiced law?
Sean Daniel O'Brien has 21+ years of legal experience and has been licensed since 2005.
Where did Sean Daniel O'Brien go to law school?
Sean Daniel O'Brien earned their education at (JD, 2005).
How can I contact Sean Daniel O'Brien for a consultation?
You can contact Sean Daniel O'Brien 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

JD
Loyola Law School, Loyola Marymount University
- 2005

Bar Admissions

California
Admitted: 2005
Oregon
Admitted: 2014

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.