Company lists · Data refreshed September 2026

Top 25 Patent infringement lawyers based in Washington, United States

RevenueBase identified 54 company matches for patent infringement lawyers associated with Washington, United States as of September 2026 and tracks 2,075 professional contacts across them, including 1,235 with verified work emails. Across the United States, New York is the largest hub for this category (62 companies); Washington follows with 54.

This list covers company matches for patent infringement lawyers associated with Washington, 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
54Companies
2,075Contacts tracked
1,235Verified emails
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The 25 largest patent infringement lawyers based in Washington, United States

Ranked by team size
Top 25 of 54 company matches for patent infringement lawyers based in Washington, 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 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
2Exact 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
3Exact 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
4Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20094 contacts →

Exact match

“Rothwell Figg is a forward-thinking, client-focused law firm practicing at the convergence of intellectual property, litigation, and technology.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20088 contacts →

Exact match

“How are we different?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Wenderoth is an Intellectual Property firm with one primary focus - prosecution.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Staas & Halsey LLP has provided clients with intellectual property protection and technical expertise since 1971.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20029 contacts →

Exact match

“WHDA is a full service intellectual property law firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“At Jordan IP Law, LLC, we help to extend the growth of your business by providing large firm patent experience with unprecedented personal attention at a value that meets your…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Stein IP LLC is a full service intellectual property law firm with an emphasis on intellectual property creation and maximization.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Cherian Harkins Dunham LLP blends the knowledge and depth of a big law firm with the trial experience of a litigation boutique, and a history of success in high stakes cases.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-108 contacts →

Exact match

“Intellectual Property Law Boutique”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-106 contacts →

Exact match

“Established in 1989, in Washington DC, DNLZito has a reputation for providing quality service tailored to the specific needs of each client.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-506 contacts →

Exact match

“Global IP provides world class IP litigation in federal courts and patent and trademark prosecution.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-506 contacts →

Exact match

“NovoTech Patent Firm is a leading patent law firm with a team of seasoned patent attorneys who are dedicated to providing our clients with the highest level of legal…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Laurence & Phillips IP Law is a U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-504 contacts →

Exact match

“Strain PLLC is a boutique Washington, D.C.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Dowd Scheffel PLLC offers the highest quality legal services for all aspects of intellectual property.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Kotchen & Low LLP is a litigation boutique that focuses on commercial litigation, employment discrimination, antitrust, class actions, and patent infringement litigation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchWashington, United StatesHQ recorded Sep 20, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-103 contacts →

Exact match

“Proudly offering intellectual property services to clients located anywhere in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Ewers IP Law PLLC is a full-service intellectual property law firm that specializes in international utility and design patent applications (PCT), US domestic utility and design…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Hillyer Legal provides best-in-class legal representation in all sectors of intellectual property law.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Washington, D.C.”

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

Showing 25 of 54 patent infringement lawyers based in Washington, United States

See the full list, filter by size, metro and specialty, and access 1,235 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Patent infringement lawyers based in Washington, United States at a glance

As of Sep 20, 2026
59.5%Verified-email coverage
38.4Average contacts per company
1-10Median size (employees)
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
11
51-200
5
201-500
2
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 54 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 Washington, 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 1,235 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 Washington, United States?

RevenueBase identified 54 company matches for patent infringement lawyers associated with Washington, 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?

Finnegan, Henderson, Farabow, Garrett & Dunner, 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 infringement lawyers?

New York leads the United States 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 1,235 professional contacts with verified work emails tracked across these 54 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.