Atty. William Patrick Keane

Atty. William Patrick Keane

William Patrick Keane is a lawyer practicing antitrust, business litigation, intellectual property litigation and 5 other areas of law. William received a B.A. degree from University of California at Berkeley, and has been licensed for 40 years.

San Francisco San Francisco 40 yrs experience 40 year
Call (415) 777-2230 Book Appointment

Antitrust & More Attorney · Serving San Francisco, CA · 40+ Years Experience

Profile Summary

About William Patrick Keane at a Glance

William Patrick Keane is a Partner based in San Francisco, California, practicing at Farella Braun Martel Llp. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on patent, business, ip, white collar, and litigation. Admitted to practice in California (1986). Educated at Hastings College of the Law J.D. (—) and University of California at Berkeley B.A. Political Science (—). Recognitions include AV Preeminent. Serves clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About William Patrick Keane

  • William Patrick Keane is a lawyer practicing antitrust, business litigation, intellectual property litigation and 5 other areas of law
  • William received a B.A. degree from University of California at Berkeley, and has been licensed for 40 years
  • William practices at Farella Braun + Martel LLP in San Francisco, CA

Practice Areas Explained

William Patrick Keane's Areas of Legal Practice

Each practice area below reflects the types of cases William Patrick Keane handles, with a practical overview of what that area of law involves and how it may apply to your situation in San Francisco.

Patent Law in San Francisco

William Patrick Keane is one of 20,632 patent attorneys indexed nationally. Browse patent attorneys in California →

Business & Corporate Law in San Francisco

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William Patrick Keane is one of 497,491 business attorneys indexed nationally. Browse business attorneys in California →

Intellectual Property in San Francisco

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

William Patrick Keane is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in California →

White Collar Crimes in San Francisco

William Patrick Keane is one of 19,824 white collar attorneys indexed nationally. Browse white collar attorneys in California →

Civil Litigation in San Francisco

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

William Patrick Keane is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Jurisdictional Context

Why Local Counsel Matters in San Francisco

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 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.

San Francisco Courts and Legal Process

Choosing a San Francisco-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 San Francisco or all attorneys in California.

Frequently Asked

Common Questions About William Patrick Keane

Where is William Patrick Keane's law office located?
William Patrick Keane's law practice is located in San Francisco, California. The firm is Farella Braun Martel Llp. You can contact the office directly through this profile page.
What practice areas does William Patrick Keane handle?
William Patrick Keane focuses on patent, business, ip, white collar, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has William Patrick Keane practiced law?
William Patrick Keane has 40+ years of legal experience and has been licensed since 1986.
Where did William Patrick Keane go to law school?
William Patrick Keane earned their education at (—); (—).
How can I contact William Patrick Keane for a consultation?
You can contact William Patrick Keane 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 William Patrick Keane received?
William Patrick Keane's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in San Francisco Choose William Patrick Keane

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 William Patrick Keane's practice in the field of patent, business, ip, white collar, and litigation.

Decade-Tested Legal Experience

William Patrick Keane brings 40+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering patent, business, and ip, William Patrick Keane can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in San Francisco

A San Francisco-based practice means William Patrick Keane 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 William Patrick Keane Handles in San Francisco

Below is a representative sample of the types of matters William Patrick Keane 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.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business
Trademark registration
IP
Copyright infringement defense
IP
Patent prosecution
IP
Trade secret protection
IP

This list is illustrative, not exhaustive. Contact William Patrick Keane directly to discuss the specifics of your situation.

Search Reference

How People Find William Patrick Keane Online

Prospective clients searching for legal help in San Francisco commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like William Patrick Keane.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with William Patrick Keane directly.

Education & Law School Background

—
Hastings College of the Law J.D.
- In Progress
—
University of California at Berkeley B.A. Political Science
- In Progress

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

California
Admitted: 1986

Client Reviews & Ratings — William Patrick Keane

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