Company lists · Data refreshed September 2026
Top 25 Agrochemical patent law firms based in the United States
RevenueBase identified 155 agrochemical patent law firms headquartered in the United States as of September 2026 and tracks 1,767 professional contacts across them, including 1,062 with verified work emails. New York is the largest hub.
This list covers agrochemical patent law firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest agrochemical patent law firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 127 contacts → | ||||
Strong evidence “Since 1976, BSKB has been providing a full range of intellectual property law services to clients in the areas of patent prosecution, post-grant review, litigation, ITC…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 104 contacts → | ||||
Partial evidence “Clark+Elbing is a top-tier intellectual property (IP) law firm focused on protecting and promoting innovations in life science, chemistry, devices, and diagnostics.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 97 contacts → | ||||
Indirect evidence “If you’re looking for a group of Intellectual Property attorneys who are smart enough to understand your vision, compassionate enough to appreciate your ingenuity, and wise enough…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 87 contacts → | ||||
Partial evidence “Harrity & Harrity is a leading patent preparation and prosecution firm specializing in the electrical and mechanical technology areas, and is considered a Go-To Firm for the…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 78 contacts → | ||||
Partial evidence “Nichino America, Inc.(NAI) is a wholly owned subsidiary of Japan’s oldest agrochemical company, Nihon Nohyaku Co, Ltd (NNC).” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 55 contacts → | ||||
Partial evidence “McNeill PLLC, a nationally recognized biotech and pharma-focused IP boutique firm, provides comprehensive life science patent prosecution and counseling services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 53 contacts → | ||||
Partial evidence “Hauptman Ham, LLP with offices adjacent to the Alexandria, Virginia location of the United States Patent and Trademark Office, is a 20+ attorney/agent/technical consultant firm…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Strong evidence “For over 50 years, Drexel Chemical Company has been a leader in the agrochemicals industry, setting the standard for post patent pesticides.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 50 contacts → | ||||
Indirect evidence “At KDW, our forward-thinking approach to intellectual property delivers bespoke legal solutions that empower innovation and safeguard creativity.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 50 contacts → | ||||
Strong evidence “Myers Bigel is a nationally ranked intellectual property law firm combining patent law expertise with a stable continuity of counsel to produce quality patents that stand up to…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 50 contacts → | ||||
Indirect evidence “Durham, NC-based Sipcam Agro USA, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 46 contacts → | ||||
Strong evidence “For over 20 years, The Patent Professor®, a national AV-rated intellectual property law firm, has specialized in patent prosecution matters, opinion work, and securing brand…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 44 contacts → | ||||
Indirect evidence “Since 1993, Westman, Champlin & Koehler has been a legal advisor to enterprises in engineering, physics, and life sciences throughout the world.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 37 contacts → | ||||
Strong evidence “Mueting Raasch Group is an intellectual property law firm with expertise in patent preparation, prosecution, and opinions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Partial evidence “At Pabst Patent Group (PPG), we understand both the complex concepts underlying scientific discoveries and the business strategies behind their development.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 contacts → | ||||
Partial evidence “Ostrolenk Faber is a premier intellectual property boutique law firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Strong evidence “McBee Moore & Vanik IP, LLC,#mmviplaw is a boutique IP patent law firm servicing clients in biotechnology, chemistry, pharmaceuticals, and other scientific fields.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Indirect evidence “Hayes Soloway, an AV Peer Review Rated intellectual property firm, has offices in Tucson, Arizona, Manchester, New Hampshire, and Salt Lake City, UT.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Partial evidence “Eschweiler & Potashnik, LLC, formerly Eschweiler & Potashnik, LLC, is an Intellectual Property law firm based in Cleveland, Ohio.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Partial evidence “Pearne & Gordon LLP is one of the largest intellectual property law rms in Cleveland, Ohio.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Partial evidence “Viksnins Harris Padys Malen LLP (VHPM) is a boutique law firm focused exclusively on intellectual property (IP) law.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Partial evidence “FLENER IP & Business Law is a WBE-Certified women-owned business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 19 contacts → | ||||
Indirect evidence “Cook Alex and its predecessors have a distinguished history of providing differentiated intellectual property legal services to a domestic and international client base.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 19 contacts → | ||||
Indirect evidence “Since 1981, Saliwanchik, Lloyd & Eisenschenk (SLE) has committed to providing its clients the finest legal services available in the field of intellectual property.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: agrochemical patent law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names agrochemical patent law firms.
- Partial evidence
- Its own public description names part of agrochemical patent law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name agrochemical patent law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 155 agrochemical patent law firms based in the United States
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Agrochemical patent law firms based in the United States at a glance
As of Sep 27, 2026Companies by employee count
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 155 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among agrochemical patent law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “agrochemical patent law firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names agrochemical patent law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among agrochemical patent law firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 1,062 across the full list. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names agrochemical patent law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many agrochemical patent law firms are there based in the United States?
RevenueBase identified 155 agrochemical patent law firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Birch, Stewart, Kolasch & Birch, LLP Bskb, headquartered in Vienna, tops this list with the largest team on record.
Which city has the most agrochemical patent law firms?
New York leads with 6 headquartered companies, followed by Washington (5) and Chicago (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,062 verified decision-maker contacts tracked across these 155 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 Smart Search, 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.
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