Atty. Eric Jonathan Mersmann

Atty. Eric Jonathan Mersmann

Eric Jonathan Mersmann is a lawyer practicing antitrust / trade law, litigation, patent infringement. Eric has been licensed for 21 years.

San Francisco San Francisco 21 yrs experience 21 year
Call (628) 786-5132 Book Appointment

Profile Summary

About Eric Jonathan Mersmann at a glance

Eric Jonathan Mersmann is a patent and litigation attorney based in San Francisco, California. They have 21+ years of legal experience, licensed to practice since 2005. Admitted to practice in Illinois (2005). Educated at University of Chicago Law School JD (—). Serands clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Eric Jonathan Mersmann is a lawyer practicing antitrust / trade law, litigation, patent infringement
  • Eric has been licensed for 21 years
  • Eric practices in San Francisco, CA

Practice Areas Explained

Eric Jonathan Mersmann's Areas of Practice

Each practice area below reflects the types of cases Eric Jonathan Mersmann handles, with a brief overview of what that area of law covers.

Patent Law

Eric Jonathan Mersmann is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Eric Jonathan Mersmann is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 Eric Jonathan Mersmann

Where is Eric Jonathan Mersmann's law office located?
Eric Jonathan Mersmann's law practice is located in San Francisco, California. You can contact the office directly through this profile page.
What practice areas does Eric Jonathan Mersmann handle?
Eric Jonathan Mersmann focuses on patent, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Eric Jonathan Mersmann practiced law?
Eric Jonathan Mersmann has 21+ years of legal experience and has been licensed since 2005.
Where did Eric Jonathan Mersmann go to law school?
Eric Jonathan Mersmann earned their education at (—).
How can I contact Eric Jonathan Mersmann for a consultation?
You can contact Eric Jonathan Mersmann 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 Chicago Law School JD
- In Progress

Bar Admissions

Illinois
Admitted: 2005

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