Atty. Peter Sullivan
Peter Sullivan is a lawyer practicing antitrust and trade regulation, class actions, intellectual property and 4 other areas of law. Peter received a degree from Columbia University in 1974, and has been licensed for 48 years.
Antitrust and Trade Regulation & More Attorney · Serving Los Angeles, CA · 48+ Years Experience
Profile Summary
About Peter Sullivan at a Glance
Peter Sullivan is a Partner based in Los Angeles, California, practicing at Gibson Dunn And Crutcher Llp. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on ip, class action, and litigation. Admitted to practice in New York (1978), California (1981), and Solicitor England and Wales United States Supreme Court Federal Circuit and the Second, Fourth, Nint (2010). Educated at Columbia University (Bachelor, 1974). Serves clients in Los Angeles, CA and the surrounding metropolitan area.
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About Peter Sullivan
- Peter Sullivan is a lawyer practicing antitrust and trade regulation, class actions, intellectual property and 4 other areas of law
- Peter received a degree from Columbia University in 1974, and has been licensed for 48 years
- Peter practices at Gibson, Dunn & Crutcher LLP in Los Angeles, CA and 2 others locations
Practice Areas Explained
Peter Sullivan's Areas of Legal Practice
Each practice area below reflects the types of cases Peter Sullivan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Los Angeles.
Intellectual Property in Los Angeles
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Peter Sullivan is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in California →
Class Action in Los Angeles
Peter Sullivan is one of 26,226 class action attorneys indexed nationally. Browse class action attorneys in California →
Civil Litigation in Los Angeles
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Peter Sullivan is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in California →
Jurisdictional Context
Why Local Counsel Matters in Los Angeles
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 venue, 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.
Los Angeles Courts and Legal Process
Choosing a Los Angeles-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.
Frequently Asked
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Professional Profile
Why Clients in Los Angeles Choose Peter Sullivan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Peter Sullivan's practice in the field of ip, class action, and litigation.
Decade-Tested Legal Experience
Peter Sullivan brings 48+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in New York, California, and Solicitor England and Wales United States Supreme Court Federal Circuit and the Second, Fourth, Nint, Peter Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering ip, class action, and litigation, Peter Sullivan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Los Angeles
A Los Angeles-based practice means Peter Sullivan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Peter Sullivan Handles in Los Angeles
Below is a representative sample of the types of matters Peter Sullivan has experience with under California law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Peter Sullivan directly to discuss the specifics of your situation.
Search Reference
How People Find Peter Sullivan Online
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Peter Sullivan's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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