Atty. John Paul Costello

Atty. John Paul Costello

John Paul Costello is a lawyer practicing patent, trademarks, copyrights and 9 other areas of law. John received a B.S. degree from California State University, Chico in 1985, and has been licensed for 34 years.

Sacramento Sacramento 34 yrs experience 34 year
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Profile Summary

About John Paul Costello at a glance

John Paul Costello is a Member based in Sacramento, California, practicing at Costello Law Corporation. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on patent, trademark, copyright, real estate, and ip. Admitted to practice in California registered to practice before the U.S. Patent and Trademark Office (1992), Washington (inactive) (1992), and U.S. District Court, Eastern, Central and Northern Districts of California (1992). Educated at Georgetown University (J.D., 1991) and California State University, Chico (B.S. University, 1985). Recognitions include Peer Reviewed. Active member of State Bar of California Washington State Bar Association California Lawyers for the Arts. Serands clients in Sacramento, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Paul Costello is a lawyer practicing patent, trademarks, copyrights and 9 other areas of law
  • John received a B.S. degree from California State University, Chico in 1985, and has been licensed for 34 years
  • John practices at Costello Law Corporation in Sacramento, CA

Practice Areas Explained

John Paul Costello's Areas of Practice

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

Patent Law

John Paul Costello is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in California →

Trademark Law

John Paul Costello is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in California →

Copyright Law

John Paul Costello 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.

John Paul Costello 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.

John Paul Costello 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 Sacramento 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 Sacramento or all attorneys in California.

Frequently Asked

Common questions about John Paul Costello

Where is John Paul Costello's law office located?
John Paul Costello's law practice is located in Sacramento, California. The firm is Costello Law Corporation. You can contact the office directly through this profile page.
What practice areas does John Paul Costello handle?
John Paul Costello focuses on patent, trademark, copyright, real estate, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has John Paul Costello practiced law?
John Paul Costello has 34+ years of legal experience and has been licensed since 1992.
Where did John Paul Costello go to law school?
John Paul Costello earned their education at (J.D., 1991); (B.S. University, 1985).
How can I contact John Paul Costello for a consultation?
You can contact John Paul Costello 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 John Paul Costello received?
John Paul Costello's notable recognition includes: Peer Reviewed.

Education

J.D.
Georgetown University
- 1991
B.S. University
California State University, Chico
- 1985

Awards

Peer Reviewed

Bar Admissions

California registered to practice before the U.S. Patent and Trademark Office
Admitted: 1992
Washington (inactive)
Admitted: 1992
U.S. District Court, Eastern, Central and Northern Districts of California
Admitted: 1992

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