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  3. | P. Casey Mathews

P. Casey Mathews

Partner

San Francisco

  • 415.956.1900
  • 415.291.4518
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P. Casey Mathews is a Partner at Bartko Pavia LLP and an experienced litigator, handling complex, high-stakes commercial litigation in both state and federal courts. Casey has experience representing clients in a broad array of complex commercial litigation including mass torts, contract disputes, antitrust litigation, copyright and trademark litigation, and corporate governance litigation. He has represented clients through nearly all stages of litigation, from pleadings and dispositive motions through trial. Throughout his career, Casey has focused on developing litigation strategies that are both creative and cost effective to achieve the best results for his clients.

Credentials

Education

  • University of Texas School of Law, J.D.
  • Pomona College, B.A.

Bar Admissions

  • State Bar of California

Court Admissions

  • United States Court of Appeals for the Ninth Circuit
  • United States District Court for the Northern District of California
  • United States District Court for the Central District of California

Insights

Press Release

17, December 2025

Bartko Pavia Elevates Four Attorneys to Partnership

SAN FRANCISCO (December 10, 2025) — Bartko Pavia LLP is pleased to announce the promotion of four attorneys to partnership, effective January 1, 2026. The new partner class reflects the firm's distinctive culture: a powerhouse litigation practice where high performance, collegiality, and creative problem-solving combine to deliver results for clients facing their most critical challenges.

Areas of Focus

Practices

  • Intellectual Property
  • Litigation

Insights & News

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

Press Release

17, December 2025

Bartko Pavia Elevates Four Attorneys to Partnership

Learn more

Honors and Awards

26, November 2025

Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List

Learn more

Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Media Mentions

30, May 2025

Zest Labs $222M Verdict Gains Widespread Media Coverage

Learn more

Honors and Awards

01, January 2025

Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings

Learn more

Press Release

31, May 2019

Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.

Learn more

Press Release

01, August 2025

Bartko Pavia Continues Strategic Expansion with Addition of Antitrust Partner Ian Papendick

Learn more

Media Mentions

05, February 2024

Bartko Pavia Obtains Defense Win in Uber Trade Secret Case

Learn more

Honors and Awards

24, January 2024

Patrick M. Ryan Named Leading Commercial Litigator

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Press Release

14, May 2025

Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart

Learn more

Honors and Awards

08, November 2023

Bartko Pavia Ranked Top Litigation Boutique

Learn more

Press Release

11, March 2022

Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action

Learn more

Press Release

07, February 2023

Bartko Pavia Clients Win $680 Million Francesca Naify Case

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

Press Release

17, December 2025

Bartko Pavia Elevates Four Attorneys to Partnership

Learn more

Honors and Awards

26, November 2025

Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List

Learn more

Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Media Mentions

30, May 2025

Zest Labs $222M Verdict Gains Widespread Media Coverage

Learn more

Honors and Awards

01, January 2025

Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings

Learn more

Press Release

31, May 2019

Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.

Learn more

Press Release

01, August 2025

Bartko Pavia Continues Strategic Expansion with Addition of Antitrust Partner Ian Papendick

Learn more

Media Mentions

05, February 2024

Bartko Pavia Obtains Defense Win in Uber Trade Secret Case

Learn more

Honors and Awards

24, January 2024

Patrick M. Ryan Named Leading Commercial Litigator

Learn more

Press Release

14, May 2025

Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart

Learn more

Honors and Awards

08, November 2023

Bartko Pavia Ranked Top Litigation Boutique

Learn more

Press Release

11, March 2022

Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action

Learn more

Press Release

07, February 2023

Bartko Pavia Clients Win $680 Million Francesca Naify Case

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

View all Insights

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