Company lists · Data refreshed September 2026

Top 25 Pharmaceutical patent firms based in New York, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 64 companies tracked

RevenueBase identified 64 company matches for pharmaceutical patent firms associated with New York, United States as of September 2026 and tracks 1,510 professional contacts across them, including 672 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for pharmaceutical patent firms associated with New York, 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

64Companies

1,510Contacts tracked

672Verified emails

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The 25 largest pharmaceutical patent firms based in New York, United States

Ranked by team size

Top 25 of 64 company matches for pharmaceutical patent firms based in New York, 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	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
2	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
3	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
4	Ladas & Parry LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	135 contacts →
	Exact match “As an enterprise grows, its need for intellectual property (IP) protection expands.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Kenyon & Kenyon LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	n/a	117 contacts →
	Exact match “Kenyon & Kenyon LLP is a leading intellectual property law firm whose sophisticated and business-oriented approach helps clients succeed with their intellectual property…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	HG LAW LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	100 contacts →
	Exact match “HG Law LLP (formerly Haley Guiliano LLP) is an international intellectual property law firm specializing in patent law from offices in London, New York and Silicon Valley.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Amster Rothstein & Ebenstein LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	85 contacts →
	Exact match “Since 1953, Amster, Rothstein & Ebenstein LLP has focused exclusively on representing clients in all facets of intellectual property law both domestically and internationally.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Haug Partners LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	81 contacts →
	Exact match “For over 25 years, Haug Partners has provided synthesized multidisciplinary legal services for life science and technology businesses.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Gottlieb, Rackman & Reisman, P.C	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	34 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Lucas & Mercanti LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “Lucas & Mercanti is an intellectual property law firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Ostrolenk Faber LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match “Ostrolenk Faber is a premier intellectual property boutique law firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Gemini LAW LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	21 contacts →
	Exact match “Gemini’s life sciences lawyers are among the most experienced and successful at helping manufacturers of biopharma products navigate IP barriers to access the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Notaro, Michalos & Zaccaria P.C	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Gish Pllc	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Large publicly traded companies and cutting-edge startups trust Gish PLLC to handle their most intricate IP matters.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	FAY Kaplun & Marcin, LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Fay Kaplun & Marcin, LLP specializes in Intellectual Property (IP) Law, assisting clients with identifying, analyzing and protecting IP, including patents, trademarks, copyrights…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Lombard Geliebter & Cohen	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “LGC is a New York City-based boutique law firm specializing in intellectual property litigation, prosecution, and related business and technology matters.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Radulescu LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	8 contacts →
	Exact match “Radulescu LLP is a patent litigation firm that specializes in cases where a deep understanding of the interplay between technology and legal issues is critical to a company’s…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Powley & Gibson, P.C	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Our firm advises and counsels clients on a wide range of intellectual property issues in various industries, including pharmaceutical, retail, food services, publishing, apparel…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Sisun LAW	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “Sisun Law, PLLC offers legal services in the fields of trademark, copyright, and patent law.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Wissing Miller LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “Intellectual Property Counseling and Legal Services” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Villegas & Cefo LLP	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Intellectual property and complex litigation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Natter & Associates, P.C	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	RWS Inovia	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	501-1,000	6 contacts →
	Exact match “RWS inovia is the world’s leading expert in IP translations, foreign patent filing and patent search services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Trademarkers LLC	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “TradeMarkers is a global team of experienced intellectual property and trademark attorneys.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Grant Attorneys At LAW Pllc	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Grant Attorneys at Law PLLC is a business and intellectual property law firm.” 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 64 pharmaceutical patent firms based in New York, United States

See the full list, filter by size, metro and specialty, and access 672 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Pharmaceutical patent firms based in New York, United States at a glance

As of Sep 17, 2026

44.5%Verified-email coverage

23.6Average contacts per company

1-10Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 64 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 New York, 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 672 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 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 “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 New York, United States?

RevenueBase identified 64 company matches for pharmaceutical patent firms associated with New York, 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?

Effectual Services 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 pharmaceutical patent firms?

New York leads the United States with 64 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 672 professional contacts with verified work emails tracked across these 64 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.