Best Law Firms in California for Litigation - Intellectual Property

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 Foster City, California
 Foster City, California
United States 2026
 2  Regional Awards

Alberti Lim & Tonkovich LLP is a leading law firm with 2 lawyers recognized by Best Lawyers across 2 practice areas. The firm's tenure with Best Lawyers began in 2006. Having lawyers recognized in Best Lawyers' purely peer review process emphasizes the lawyers credibility and reputation for their practice amongst their peers in their practice area and region. It displays professional validation of the legal talent that Alberti Lim & Tonkovich LLP has on their team. The firm has lawyers recognized in practice areas including: Litigation - Intellectual Property and Litigation - Patent.

Alberti Lim & Tonkovich LLP is also ranked by Best Law Firms in 2 practice areas. The Best Law Firms rankings are founded on a time-tested and transparent research process that has remained consistent since Best Lawyers launched it in 2010. Alberti Lim & Tonkovich LLP has 2 rankings in 2 practices. Echoing their Best Lawyers awards and team of top legal talent.

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San Francisco Tier 3 in Litigation - Intellectual Property
 Redwood City, California
Client Endorsed
 Redwood City, California
United States 2026
 1  National Award
 2  Regional Awards

Bunsow De Mory is a nationally recognized intellectual property litigation boutique that specializes in maximizing the value of IP through strategic litigation. The firm is based in California and has seasoned litigators around the country, including in Texas and Washington, DC. The firm represents IP owners in federal district courts, federal appellate courts, and before the United States Patent Trial and Appeal Board against the largest technology companies and law firms in the world, and consistently achieves best in class results for its clients.

Bunsow De Mory is strategically focused, technically proficient, and trial tested. Firm lawyers have decades of experience and success litigating patent cases in venues throughout the country. Our partners have collectively tried nearly 100 patent cases. In the last four years alone, current firm partners secured more than $400M in verdicts and settlements.

Bunsow De Mory works on intellectual property litigation matters across a range of technologies from semiconductors to artificial intelligence to DNA. More than half of the lawyers have technical degrees, some with years of technical experience in relevant industries While the firm thrives on the most technically challenging cases, the firm’s most formidable strength is its well-tested ability to formulate strategies that drive results for patent holders.

The firm’s superpower is its ability to see the through line to trial. Indeed, in its almost thirteen-year history, the firm has never lost a patent infringement case at the summary judgment stage.

 

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San Francisco Tier 1 in Litigation - Intellectual Property
 Newport Beach, California
Client Endorsed
 Newport Beach, California
United States 2026
 4  Regional Awards

Clients Trust Us When WINNING IS Everything.™

Over the past four decades, Klein & Wilson LLP built a reputation for winning. We formed an exceptional team of highly skilled trial lawyers who execute specially designed strategies to achieve our clients’ ideal outcomes. Since forming the firm in 1994, our attorneys earned a successful record that has secured our clients’ trust and has cemented our place in California’s courts.

Klein & Wilson LLP’s attorneys have decades of courtroom experience. We are trial lawyers. We represent clients in “bet the company” cases with millions of dollars at stake. We represent plaintiffs and defendants in business and commercial litigation matters including contract, partnership, shareholder, real estate, and intellectual property disputes. We also represent clients against their former attorneys in legal malpractice and accounting malpractice cases. Our skilled team of trial attorneys bring persuasive arguments to life, using state-of-the-art multimedia and advanced technologies for the complex cases that we try.

Klein & Wilson LLP has recovered almost $350 million for our plaintiff clients and has saved over $1.5 billion for our defendant clients. Our successful trial record speaks for itself. We have prevailed in over 90% of the cases that we have taken to trial, earning a reputation for excellence across a broad range of complex legal matters. For this reason, our team is often asked to take new cases from parties that we defeated.

Our combination of trial experience, business acumen, and strategic planning sets us apart from other firms. Our law firm is a business, with the same opportunities and challenges that our business clients face. When you hire us, you get the benefit of working with skilled business strategists. We speak your language. We start the representation with the end in mind – we determine how to win your case and work backward from there.

We regularly consult with certified public accountants (CPAs), economists, valuation experts, and appraisers, who support our clients’ cases and provide specialized knowledge, across a wide range of industries.

Beyond our litigation success, we place a premium on our client’s overall experience. We consistently collaborate with clients to achieve the best outcomes.

When your business faces challenges especially on matters that can negatively impact your bottom line, you cannot afford to settle for anything less than proven litigators. Klein & Wilson LLP has an extensive record of success in all aspects of business litigation, and we have built our reputation for winning on these results.

For over four decades, the highly skilled and experienced team at Klein & Wilson LLP has focused on complex business litigation and legal malpractice — and our results over the years have not gone unnoticed. This is why leading corporations in the world retain Klein & Wilson LLP to safeguard their interests.

Klein & Wilson LLP’s attorneys have honed their skills through decades of complex litigation success and have a win rate of over 90%. Our reputation alone is often enough to bring opposing parties to the negotiation table.

Clients trust Klein & Wilson LLP when winning is everything. Whether you are facing complex litigation, a regulatory dispute, or a malpractice action, our attorneys are prepared to step in and fight vigorously for you. Call the team today at 949-239-0907 or contact the firm by email.

Klein & Wilson LLP is a litigation firm widely recognized for our track record in achieving outstanding outcomes for select clients. We are presently accepting hourly fee cases, where the amount in dispute is at least $2,000,000. We accept contingency/hybrid fee cases where the amount in dispute is at least $10 million, assuming the case meets other criteria.

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Orange County Tier 1 in Litigation - Intellectual Property
 Encino, California
Client Endorsed
 Encino, California
United States 2026
 1  National Award
 8  Regional Awards
Lewitt Hackman is a full service law firm located in Los Angeles County. Established in 1969, we have nearly 40 attorneys working in 14 Practice Groups, and represent both business and individuals. 
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Los Angeles Tier 3 in Litigation - Intellectual Property
United States 2026
 1  Law Firm of the Year Award
 39  National Awards
 150  Regional Awards

McDermott Will & Schulte is a leading law firm with 368 lawyers recognized by Best Lawyers across 66 practice areas. The firm's tenure with Best Lawyers began in 1983. Having lawyers recognized in Best Lawyers' purely peer review process emphasizes the lawyers credibility and reputation for their practice amongst their peers in their practice area and region. It displays professional validation of the legal talent that McDermott Will & Schulte has on their team. The firm has lawyers recognized in practice areas including: Commercial Finance Law, Litigation - Bankruptcy, Financial Services Regulation Law, Private Funds / Hedge Funds Law and Life Sciences Practice.

McDermott Will & Schulte is also ranked by Best Law Firms in 56 practice areas. The Best Law Firms rankings are founded on a time-tested and transparent research process that has remained consistent since Best Lawyers launched it in 2010. McDermott Will & Schulte has 189 rankings in 56 practices. Echoing their Best Lawyers awards and team of top legal talent.

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National Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
 Irvine, California
 Irvine, California
United States 2026
 1  National Award
 20  Regional Awards
Rutan & Tucker’s highly strategic, forward thinking approach to individual cases and client needs has been the hallmark of the firm since A.W. Rutan opened the law firm in 1955. Rutan & Tucker has enjoyed a leading role in shaping Orange County and California businesses and communities, today standing as the largest full-service business law firm based in Orange County.

Rutan & Tucker represents a broad spectrum of clients, from major multinational corporations and financial institutions to family-owned businesses and private individuals; from high-technology and industrial enterprises to agricultural firms; from real estate developers to governmental agencies, educational institutions, and charities. The firm's practice extends throughout the United States and includes both the representation of foreign companies doing business in the United States and domestic companies engaged in activities abroad.

Our attorneys come from more than thirty law schools nationwide. Many graduated Order of the Coif or Phi Beta Kappa, were the editors of law reviews or held judicial clerkships. The accomplishments of our attorneys reflect the quality of Rutan & Tucker. The firm has provided a president and two members of the board of governors of the California State Bar and six presidents of the Orange County Bar Association. Some of the firm's attorneys teach professional education courses or law school classes. Many hold significant positions in trade, charitable and civic organizations.

The firm's tradition is one of fresh, strategic thinking and going forward, we will continue to make history with a continued commitment to excellence and new thinking for many decades to come.
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Orange County Tier 1 in Litigation - Intellectual Property
United States 2026
 1  Law Firm of the Year Award
 36  National Awards
 93  Regional Awards

LEGAL EXCELLENCE. DEDICATION TO CLIENTS. COMMITMENT TO PUBLIC SERVICE.

WilmerHale is a leading, full-service international law firm with more than 1,100 lawyers located throughout 12 offices in the United States and Europe. Our lawyers work at the intersection of government, technology and business, and we remain committed to our guiding principles of:

-providing quality, world-class legal and client services;

-fostering an environment that promotes an entrepreneurial spirit, collaboration and collegiality by drawing on the exceptional talents and varied experience of our lawyers;

-providing all of our attorneys and business professionals with the opportunity to succeed;

-encouraging lawyers and business professionals to perform public service and give back to the community through pro bono work, government service, service to the bar, teaching, and supporting public institutions and charitable organizations;

-and hiring and retaining exceptionally talented lawyers who possess the common trait of outstanding academic and personal achievements.

Learn more about us at wilmerhale.com.

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National Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
 1  Regional Award
Orange County Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 48  National Awards
 142  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 2 in Litigation - Intellectual Property
 3  National Awards
 5  Regional Awards
National Tier 2 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 8  National Awards
 15  Regional Awards
Los Angeles Tier 2 in Litigation - Intellectual Property
 2  National Awards
 4  Regional Awards
San Francisco Tier 2 in Litigation - Intellectual Property
 19  National Awards
 109  Regional Awards
National Tier 2 in Litigation - Intellectual Property
San Diego Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 2 in Litigation - Intellectual Property
 2  Law Firm of the Year Awards
 33  National Awards
 127  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 3  National Awards
 6  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 4  National Awards
 9  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
 3  Regional Awards
San Diego Tier 1 in Litigation - Intellectual Property
 8  National Awards
 14  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 2  Law Firm of the Year Awards
 43  National Awards
 167  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
Orange County Tier 1 in Litigation - Intellectual Property
San Francisco Tier 2 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 39  National Awards
 88  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
 10  National Awards
 21  Regional Awards
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 57  National Awards
 471  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
San Francisco Tier 2 in Litigation - Intellectual Property
 6  National Awards
 12  Regional Awards
National Tier 2 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 30  National Awards
 66  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 2 in Litigation - Intellectual Property
 8  Regional Awards
Orange County Tier 1 in Litigation - Intellectual Property
 46  National Awards
 175  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
San Diego Tier 2 in Litigation - Intellectual Property
 5  National Awards
 8  Regional Awards
National Tier 2 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 40  National Awards
 122  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 22  National Awards
 58  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 24  National Awards
 80  Regional Awards
Los Angeles Tier 2 in Litigation - Intellectual Property
 6  Regional Awards
San Jose Tier 1 in Litigation - Intellectual Property
 26  National Awards
 77  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
San Diego Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 40  National Awards
 164  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 2 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 6  National Awards
 18  Regional Awards
Los Angeles Tier 3 in Litigation - Intellectual Property
 26  National Awards
 84  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
San Francisco Tier 2 in Litigation - Intellectual Property
 2  Law Firm of the Year Awards
 50  National Awards
 225  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
San Diego Tier 1 in Litigation - Intellectual Property
San Francisco Tier 2 in Litigation - Intellectual Property
 41  National Awards
 120  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Diego Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
San Jose Tier 3 in Litigation - Intellectual Property
 2  Law Firm of the Year Awards
 31  National Awards
 78  Regional Awards
National Tier 1 in Litigation - Intellectual Property
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 28  National Awards
 67  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Jose Tier 2 in Litigation - Intellectual Property
 1  National Award
 4  Regional Awards
Los Angeles Tier 1 in Litigation - Intellectual Property
 4  National Awards
 10  Regional Awards
San Francisco Tier 3 in Litigation - Intellectual Property
 4  National Awards
 7  Regional Awards
San Francisco Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 33  National Awards
 93  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Jose Tier 1 in Litigation - Intellectual Property
 4  Regional Awards
Los Angeles Tier 3 in Litigation - Intellectual Property
 1  National Award
 24  Regional Awards
Orange County Tier 3 in Litigation - Intellectual Property
 1  National Award
 2  Regional Awards
Orange County Tier 3 in Litigation - Intellectual Property
 8  National Awards
 10  Regional Awards
Los Angeles Tier 1 in Litigation - Intellectual Property
 1  Law Firm of the Year Award
 40  National Awards
 115  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Francisco Tier 1 in Litigation - Intellectual Property
United States 2026
 3  Regional Awards
Orange County Tier 1 in Litigation - Intellectual Property
United States 2026
 36  National Awards
 104  Regional Awards
National Tier 1 in Litigation - Intellectual Property
San Jose Tier 2 in Litigation - Intellectual Property
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