Company lists · Data refreshed September 2026

Top 25 Pharmaceutical patent firms based in the United States

Name: Pharmaceutical patent firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,246 companies tracked

RevenueBase identified 1,246 company matches for pharmaceutical patent firms associated with the United States as of September 2026 and tracks 19,780 professional contacts across them, including 10,859 with verified work emails. New York is the largest hub.

This list covers company matches for pharmaceutical patent firms 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 17, 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 17, 2026 How this list was built

1,246Companies

19,780Contacts tracked

10,859Verified emails

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The 25 largest pharmaceutical patent firms based in the United States

Ranked by team size

Top 25 of 1,246 company matches for pharmaceutical patent firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Fish & Richardson P.C	Exact match	Boston, MA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,167 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 17, 2026 · View company records in RevenueBase
2	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	501-1,000	936 contacts →
	Exact match “When your most valuable assets are ideas, innovation, and brand-you need the best.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Maxval Group, INC	Exact match	Los Altos, CA, United StatesHQ recorded Sep 17, 2026	501-1,000	754 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 17, 2026 · View company records in RevenueBase
4	Knobbe Martens	Exact match	Irvine, CA, United StatesHQ recorded Sep 17, 2026	501-1,000	606 contacts →
	Exact match “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Sterne, Kessler, Goldstein & FOX	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	201-500	468 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 17, 2026 · View company records in RevenueBase
6	Wolf Greenfield	Exact match	Boston, MA, United StatesHQ recorded Sep 17, 2026	201-500	428 contacts →
	Exact match “Wolf, Greenfield & Sacks, P.C.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Merchant & Gould P.C	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 17, 2026	201-500	317 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 17, 2026 · View company records in RevenueBase
8	Banner Witcoff	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	201-500	288 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 17, 2026 · View company records in RevenueBase
9	Schwegman Lundberg & Woessner, P.A	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 17, 2026	201-500	275 contacts →
	Exact match “SLW is a boutique law firm dedicated to protecting intellectual property.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Harness IP	Exact match	Bloomfield Hills, MI, United StatesHQ recorded Sep 17, 2026	201-500	266 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 17, 2026 · View company records in RevenueBase
11	Effectual Services	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	201-500	242 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 17, 2026 · View company records in RevenueBase
12	Cantor Colburn LLP	Exact match	Hartford, CT, United StatesHQ recorded Sep 17, 2026	201-500	222 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 17, 2026 · View company records in RevenueBase
13	Marshall, Gerstein & Borun LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	51-200	213 contacts →
	Exact match “Marshall, Gerstein & Borun LLP has one focus - intellectual property law.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Sughrue Mion Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	201-500	211 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 17, 2026 · View company records in RevenueBase
15	Fross Zelnick Lehrman & Zissu	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	182 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 17, 2026 · View company records in RevenueBase
16	Dority & Manning, P.A	Exact match	Greenville, SC, United StatesHQ recorded Sep 17, 2026	51-200	181 contacts →
	Exact match “Formed in 1984, Dority & Manning is a full-service intellectual property law firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Mcandrews, Held & Malloy, LTD	Exact match	Chicago, United StatesHQ recorded Sep 17, 2026	51-200	162 contacts →
	Exact match “McAndrews, Held & Malloy is a premier, full-service intellectual property and technology law firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Leydig, Voit & Mayer, LTD	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	51-200	157 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 17, 2026 · View company records in RevenueBase
19	OBLON	Exact match	Alexandria, VA, United StatesHQ recorded Sep 17, 2026	201-500	156 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 17, 2026 · View company records in RevenueBase
20	Workman Nydegger	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 17, 2026	51-200	153 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 17, 2026 · View company records in RevenueBase
21	Lerner David	Exact match	Cranford Township, NJ, United StatesHQ recorded Sep 17, 2026	51-200	151 contacts →
	Exact match “Lerner David works with clients to build and protect their Intellectual Property (IP) assets, as well as minimize risk from competitors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Klarquist Sparkman, LLP	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	146 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 17, 2026 · View company records in RevenueBase
23	Mbhb Mcdonnell Boehnen Hulbert & Berghoff LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	51-200	143 contacts →
	Exact match “At MBHB, the legal and scientific credentials of our professionals are first rate.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Cardinal Intellectual Property	Exact match	Evanston, IL, United StatesHQ recorded Sep 17, 2026	201-500	142 contacts →
	Exact match “Cardinal IP is a global leader in patent and trademark research, and a provider of software services for intellectual property management.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Desmarais LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	140 contacts →
	Exact match “Desmarais LLP is a leading intellectual property litigation firm with offices in New York, San Francisco, and Washington, D.C.” Recorded in the RevenueBase company graph · Sep 17, 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 “pharmaceutical patent 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 1,246 pharmaceutical patent firms based in the United States

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Pharmaceutical patent firms based in the United States at a glance

As of Sep 17, 2026

54.9%Verified-email coverage

15.9Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

767

11-50

362

51-200

201-500

501-1,000

1,001-5,000

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 1,246 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 “pharmaceutical patent 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 10,859 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 17, 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.

Pharmaceutical patent firms by metro

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 “pharmaceutical patent firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pharmaceutical patent firms are there based in the United States?

RevenueBase identified 1,246 company matches for pharmaceutical patent firms 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 pharmaceutical patent firms?

New York leads with 65 company records, followed by Washington (55) and Chicago (45).

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 10,859 professional contacts with verified work emails tracked across these 1,246 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 17, 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.