Atty. John Harold Horwitz

Atty. John Harold Horwitz

John Harold Horwitz is a lawyer practicing insurance, appeals, intellectual property and 1 other area of law. John received a B.A. degree from University of California at Irvine in 1972, and has been licensed for 38 years.

Los Angeles Los Angeles 38 yrs experience 38 year
Call (213) 603-9957 Book Appointment

Profile Summary

About John Harold Horwitz at a glance

John Harold Horwitz is a ip, insurance, and appellate attorney based in Los Angeles, California. They have 38+ years of legal experience, licensed to practice since 1988. Admitted to practice in California U.S. Court of Appeals, Ninth Circuit U.S. District Court, Central, Northern, Eastern and (1988). Educated at Loyola Law School (J.D., 1988) and University of California at Irvine (B.A. University, 1972). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Harold Horwitz is a lawyer practicing insurance, appeals, intellectual property and 1 other area of law
  • John received a B.A. degree from University of California at Irvine in 1972, and has been licensed for 38 years
  • John practices in Los Angeles, CA

Practice Areas Explained

John Harold Horwitz's Areas of Practice

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

Intellectual Property

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

John Harold Horwitz is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in California →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

John Harold Horwitz is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in California →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

John Harold Horwitz is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 Los Angeles 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 Los Angeles or all attorneys in California.

Frequently Asked

Common questions about John Harold Horwitz

Where is John Harold Horwitz's law office located?
John Harold Horwitz's law practice is located in Los Angeles, California. You can contact the office directly through this profile page.
What practice areas does John Harold Horwitz handle?
John Harold Horwitz focuses on ip, insurance, appellate. Each practice area listed reflects experience handling cases of that type in California.
How long has John Harold Horwitz practiced law?
John Harold Horwitz has 38+ years of legal experience and has been licensed since 1988.
Where did John Harold Horwitz go to law school?
John Harold Horwitz earned their education at (J.D., 1988); (B.A. University, 1972).
How can I contact John Harold Horwitz for a consultation?
You can contact John Harold Horwitz 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.
Loyola Law School
- 1988
B.A. University
University of California at Irvine
- 1972

Bar Admissions

California U.S. Court of Appeals, Ninth Circuit U.S. District Court, Central, Northern, Eastern and
Admitted: 1988

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