Company lists · Data refreshed September 2026

Top 25 Patent infringement lawyers based in the United States

RevenueBase identified 1,241 company matches for patent infringement lawyers associated with the United States as of September 2026 and tracks 20,226 professional contacts across them, including 11,088 with verified work emails. New York is the largest hub.

This list covers company matches for patent infringement lawyers associated with the 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 20, 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 20, 2026 How this list was built
1,241Companies
20,226Contacts tracked
11,088Verified emails
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The 25 largest patent infringement lawyers based in the United States

Ranked by team size
Top 25 of 1,241 company matches for patent infringement lawyers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261,001-5,0001,167 contacts →

Exact match

“As the leading intellectual property law firm, we help innovators change the world through our unmatched litigation, prosecution, and post-grant experience across venues and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 20, 2026501-1,000936 contacts →

Exact match

“When your most valuable assets are ideas, innovation, and brand-you need the best.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLos Altos, CA, United StatesHQ recorded Sep 20, 2026501-1,000754 contacts →

Exact match

“Since 2004, MaxVal has helped the world's most innovative organizations capitalize on their intellectual property by being different from the legacy IP solution providers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchIrvine, CA, United StatesHQ recorded Sep 20, 2026501-1,000606 contacts →

Exact match

“Knobbe Martens protects the ideas that drive innovation and propel our world forward.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSeattle, WA, United StatesHQ recorded Sep 20, 2026501-1,000488 contacts →

Exact match

“Sagacious IP is the World’s LARGEST IP research firm that reliably supports the worldwide IP community including Large Corporations, Small & Mid-size Corporations, IP law firms…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Sep 20, 2026201-500468 contacts →

Exact match

“Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-500428 contacts →

Exact match

“Wolf, Greenfield & Sacks, P.C.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchMinneapolis, MN, United StatesHQ recorded Sep 20, 2026201-500317 contacts →

Exact match

“An intellectual property law firm at the leading edge of patent, trademark and copyright law, licensing agreements, trade secret litigation, and more, expect a unique combination…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Sep 20, 2026201-500288 contacts →

Exact match

“For more than 100 years Banner Witcoff has provided sound protection and inventive intellectual property solutions for some of the world’s most innovative organizations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBloomfield Hills, MI, United StatesHQ recorded Sep 20, 2026201-500266 contacts →

Exact match

“Harness IP’s team of patent and trademark attorneys serve clients in all areas of intellectual property law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 2026201-500258 contacts →

Exact match

“Irell & Manella LLP is a law firm focused on complex commercial and IP litigation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500242 contacts →

Exact match

“Effectual Services is a well established and fast growing patent and legal support services company having experience and expertise in providing patent and legal services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchHartford, CT, United StatesHQ recorded Sep 20, 2026201-500222 contacts →

Exact match

“Cantor Colburn LLP is one of the largest intellectual property specialty law firms in the country, providing clients worldwide with the complete range of IP legal services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202651-200213 contacts →

Exact match

“Marshall, Gerstein & Borun LLP has one focus - intellectual property law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 20, 2026201-500211 contacts →

Exact match

“From Sughrue’s inception in 1957 to the present, we have focused solely on intellectual property law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200182 contacts →

Exact match

“Fross Zelnick is consistently recognized by clients and peers as one of the top IP law firms in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchGreenville, SC, United StatesHQ recorded Sep 20, 202651-200181 contacts →

Exact match

“Formed in 1984, Dority & Manning is a full-service intellectual property law firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchDallas, TX, United StatesHQ recorded Sep 20, 202651-200180 contacts →

Exact match

“Munck Wilson Mandala is a technology-focused law firm with offices in Dallas, Austin, Houston, Waco, Texas; Los Angeles, California; and South Florida.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchChicago, United StatesHQ recorded Sep 20, 202651-200162 contacts →

Exact match

“McAndrews, Held & Malloy is a premier, full-service intellectual property and technology law firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202651-200157 contacts →

Exact match

“Leydig, Voit & Mayer remains at the forefront of intellectual property law, providing advice and counsel in intellectual property litigation, licensing, and prosecution services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchAlexandria, VA, United StatesHQ recorded Sep 20, 2026201-500156 contacts →

Exact match

“Companies across the world depend on Oblon to help them establish, leverage and protect their intellectual property assets in the United States and abroad.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 20, 202651-200153 contacts →

Exact match

“Founded over 40 years ago, Workman Nydegger specializes in intellectual property (IP) law and complex litigation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-200148 contacts →

Exact match

“Patterson + Sheridan is a technology law firm specializing in the protection of client’s assets and rights, and does so by providing variety of services including: patent…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchPortland, OR, United StatesHQ recorded Sep 20, 202651-200146 contacts →

Exact match

“Klarquist is one of the oldest and largest full-service intellectual property firms in the Pacific Northwest.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202651-200143 contacts →

Exact match

“At MBHB, the legal and scientific credentials of our professionals are first rate.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 1,241 patent infringement lawyers based in the United States

See the full list, filter by size, metro and specialty, and access 11,088 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Patent infringement lawyers based in the United States at a glance

As of Sep 20, 2026
54.8%Verified-email coverage
16.3Average contacts per company
1-10Median size (employees)
5.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
771
11-50
356
51-200
92
201-500
12
501-1,000
7
1,001-5,000
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,241 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 the United States whose business descriptions match “patent infringement lawyers” 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 11,088 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 20, 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.

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 infringement lawyers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many patent infringement lawyers are there based in the United States?

RevenueBase identified 1,241 company matches for patent infringement lawyers associated with the 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?

Fish & Richardson P.C tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most patent infringement lawyers?

New York leads with 62 company records, followed by Washington (54) and Chicago (49).

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 11,088 professional contacts with verified work emails tracked across these 1,241 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 20, 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.