Company lists · Data refreshed September 2026

Top 25 Patent litigation law firms based in Los Angeles, United States

Name: Patent litigation law firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 106 companies tracked

RevenueBase identified 106 company matches for patent litigation law firms associated with Los Angeles, United States as of September 2026 and tracks 1,964 professional contacts across them, including 966 with verified work emails. Across the United States, New York is the largest hub for this category (206 companies); Los Angeles has 106.

This list covers company matches for patent litigation law firms associated with Los Angeles, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

106Companies

1,964Contacts tracked

966Verified emails

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The 25 largest patent litigation law firms based in Los Angeles, United States

Ranked by team size

Top 25 of 106 company matches for patent litigation law firms based in Los Angeles, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Irell & Manella LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	201-500	258 contacts →
	Exact match “Irell & Manella LLP is a law firm focused on complex commercial and IP litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Glaser Weil	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	172 contacts →
	Exact match “Glaser Weil is a premier law firm headquartered in Los Angeles with outstanding experience and market-leading successes in litigation, corporate, intellectual property and real…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Hueston Hennigan LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	121 contacts →
	Exact match “Hueston Hennigan LLP is a trial law firm focusing on high-stakes business disputes and white collar criminal defense.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Russ, August & Kabat	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	75 contacts →
	Exact match “Russ August & Kabat was founded in 1990 by Larry Russ, Rick August and Jules Kabat.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Theodora Oringher PC	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	71 contacts →
	Exact match “Theodora Oringher is a legal powerhouse in Los Angeles and Orange County.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Ellis George LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	71 contacts →
	Exact match “Ellis George LLP is a leader in business litigation that has been providing creative solutions, efficient teamwork and fearless advocacy to its clients for over 40 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Miller Barondess, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	70 contacts →
	Exact match “Miller Barondess, LLP, is a Los Angeles-based law firm specializing in litigation, trial, and appellate practice in California and around the country.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Larson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	69 contacts →
	Exact match “Larson is an elite litigation firm committed to achieving success in any courtroom.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Hill, Farrer & Burrill LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	67 contacts →
	Exact match “Hill Farrer attorneys have successfully handled thousands of transactions and won thousands of cases.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	King, Holmes, Paterno & Soriano, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	56 contacts →
	Exact match “The attorneys at King, Holmes, Paterno & Soriano, LLP provide innovative thinking, cutting edge deal making and powerful litigation and business strategies to our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Frost LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	47 contacts →
	Exact match “We are a litigation-driven firm built for efficiency–melding legal strategy, discipline, and business advice to achieve positive outcomes for our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	LTL Attorneys LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	51-200	29 contacts →
	Exact match “Trusted by general counsel of leading global companies, our highly skilled lawyers focus solely on trials and litigation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	DTO LAW	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	28 contacts →
	Exact match “Founded by former Big Law attorneys, DTO Law is an elite boutique with offices in Los Angeles, Silicon Valley, and New York, though our attorneys handle cases and matters across…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Kibler Fowler & Cave LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	28 contacts →
	Exact match “Kibler Fowler & Cave LLP is an award-winning boutique trial and litigation firm headquartered in Los Angeles, with offices in New York, Philadelphia and Princeton.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Waymaker LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “Waymaker LLP is known for winning trials and appeals across the county for clients that include Fortune 500 companies, startups and high net-worth individuals.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Kubota & Basol LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “We provide highest-quality patent legal services with the agility and flexibility to sustainably meet our clients' patent needs into the future.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Willenken LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	19 contacts →
	Exact match “Willenken is a premier boutique litigation firm renowned for our attorneys’ formidable trial capabilities and innovative strategic acumen.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Valle Makoff LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	19 contacts →
	Exact match “Valle Makoff LLP provides business litigation and related transactional advice to corporate, fiduciary and individual clients in federal and state courts, arbitrations and in…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Park Lawless & Tremonti LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	17 contacts →
	Exact match “With more than a century of combined experience at some of the preeminent Am Law 50 international law firms, our lawyers bring extensive experience in complex litigation and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Cypress LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	13 contacts →
	Exact match “An innovative law firm serving companies and entrepreneurs in litigation and trials, intellectual property, M&A, and finance.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Geragos & Geragos, APC	Exact match	Los Angeles, United StatesHQ recorded Sep 29, 2026	11-50	13 contacts →
	Exact match “Geragos & Geragos, APC, is a boutique law firm focusing on complex civil litigation and criminal defense, with offices in downtown Los Angeles and New York.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Manning, Leaver, Bruder & Berberich, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “We at Manning, Leaver, Bruder & Berberich, LLP are proud that for over 95 years our clients have trusted us to help them with their legal needs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Isaacs Friedberg Zill LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “Founding partners Jeff Isaacs and Jerry Friedberg are former Assistant U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	MSD Lawyers	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	1-10	12 contacts →
	Exact match “Located in downtown Los Angeles, Mills Sadat Dowlat LLP represents clients in industries as diverse as the city itself.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Ruttenberg IP Law, A Professional Corporation	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 29, 2026	1-10	11 contacts →
	Exact match “Ruttenberg IP Law, A Professional Corporation is a boutique intellectual property litigation law firm based in Century City that focuses primarily on patent litigation matters and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “patent litigation law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 106 patent litigation law firms based in Los Angeles, United States

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Patent litigation law firms based in Los Angeles, United States at a glance

As of Sep 29, 2026

49.2%Verified-email coverage

18.5Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 106 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Los Angeles, United States whose business descriptions match “patent litigation law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 966 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Patent litigation law firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “patent litigation law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many patent litigation law firms are there based in Los Angeles, United States?

RevenueBase identified 106 company matches for patent litigation law firms associated with Los Angeles, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Irell & Manella LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most patent litigation law firms?

New York leads the United States with 206 company records, followed by Houston (124) and Chicago (123). Los Angeles has 106.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 966 professional contacts with verified work emails tracked across these 106 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.