Company lists · Data refreshed September 2026
Top 25 Design patent law firms based in Philadelphia, United States
RevenueBase identified 35 design patent law firms headquartered in Philadelphia, United States as of September 2026 and tracks 5,772 professional contacts across them, including 3,062 with verified work emails. Across the United States, New York is the largest hub for this category (307 companies); Philadelphia has 35.
This list covers design patent law firms headquartered in Philadelphia, 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 28, 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 design patent law firms based in Philadelphia, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,041 contacts → | ||||
Partial evidence “Dechert is the law firm that helps business leaders lead.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,682 contacts → | ||||
Partial evidence “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 336 contacts → | ||||
Indirect evidence “For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 212 contacts → | ||||
Indirect evidence “Montgomery McCracken’s collaborative approach – in all we do – delivers access to the right people at the right time, efficiencies in our work, and outcomes our clients need and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 204 contacts → | ||||
Partial evidence “Rawle & Henderson, LLP, is a Mid-Atlantic regional law firm whose attorneys engage in civil trial litigation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 133 contacts → | ||||
Indirect evidence “Zarwin Baum DeVito Kaplan Schaer, P.C.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 124 contacts → | ||||
Indirect evidence “Reger Rizzo & Darnall LLP is a firm with a proven track record of success.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 103 contacts → | ||||
Strong evidence “Volpe Koenig is a full-service intellectual property law firm providing worldwide client counseling on patents, trademarks, copyrights, trade secrets, technology transfers, due…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 57 contacts → | ||||
Partial evidence “Panitch Schwarze Belisario & Nadel, LLP is an intellectual property boutique law firm that services clients internationally, with offices in Philadelphia, Wilmington, DE, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 48 contacts → | ||||
Partial evidence “On January 1, 2014, the intellectual property law firm of Woodcock Washburn combined with the more than 800 attorneys of the Am Law 100 firm BakerHostetler.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 29 contacts → | ||||
Indirect evidence “Condo Roccia Koptiw (“CRK”) is an intellectual property boutique built on two fundamental principles.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 28 contacts → | ||||
Indirect evidence “Focused solely on business litigation and counseling, the lawyers of Kang Haggerty have reputations for excellence earned through years of experience in trial and appellate court.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Partial evidence “Founded in 1926, the law firm of Caesar Rivise, PC.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Partial evidence “FisherZucker LLC is a full-service law firm with a national practice dedicated almost exclusively to franchise, distribution and licensing matters.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Indirect evidence “At Nochumson P.C, we are not just legal counsel, we are real people serving our communities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Partial evidence “Our firm is an intellectual property (“IP”) and commercial litigation boutique law firm with offices in Philadelphia, PA, New York, NY, and Washington, D.C.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “Whether you call it business law, corporate law, transactional law or contract law, Weber Law is focused on helping businesses succeed.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Partial evidence “The Patent Drawings Services is a splendid combination of a dedicated and an experienced team.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Strong evidence “Vos-IP, is a boutique law firm specializing in Intellectual Property namely patents, trademarks, copyrights and trade secrets.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Partial evidence “Harborstone Law provides effective legal representation for businesses and individuals in the areas of business and corporate law, intellectual property, and debt and dispute…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “Gekoski & Bogdanoff is an accomplished law firm that has been serving its clients for over sixty years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Partial evidence “A law firm focused on corporate, intellectual property, and securities laws in the web3 industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “Contact The Morgan Law Firm for comprehensive Intellectual Property Law and Employment Law trial representation in federal courts throughout the U.S.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Protecting Your Assets - Business and Personal Boutique IP Firm handling copyright, trademark, trade secret, and licensing matters.” Source: RevenueBase Database · checked Sep 28, 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: design 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 design patent law firms.
- Partial evidence
- Its own public description names part of design 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 design 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 35 design patent law firms based in Philadelphia, United States
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Design patent law firms based in Philadelphia, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 35 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 design 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 Philadelphia, United States whose own description of what they do matches “design 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 design 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 design patent law firms, and records with no verified work email. Companies headquartered outside Philadelphia 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, 3,062 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 28, 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.
Design patent law firms by metro in the United States
- Design patent law firms in New York307
- Design patent law firms in Chicago157
- Design patent law firms in Los Angeles136
- Design patent law firms in Washington124
- Design patent law firms in Houston106
- Design patent law firms in Dallas103
- Design patent law firms in Atlanta91
- Design patent law firms in San Diego79
- Design patent law firms in Miami77
- Design patent law firms in San Francisco77
- Design patent law firms in Austin75
- Design patent law firms in Irvine61
- Design patent law firms in Boston54
- Design patent law firms in Seattle54
- Design patent law firms in Denver47
- Design patent law firms in Minneapolis41
- Design patent law firms in Portland39
- Design patent law firms in Salt Lake City37
- Design patent law firms in Phoenix33
- Design patent law firms in Tampa32
- Design patent law firms in Alexandria30
- Design patent law firms in Nashville29
- Design patent law firms in San Jose29
- Design patent law firms in Palo Alto28
- Design patent law firms in Fort Lauderdale25
- Design patent law firms in New Orleans25
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 design 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 design patent law firms are there based in Philadelphia, United States?
RevenueBase identified 35 design patent law firms headquartered in Philadelphia, 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?
Dechert LLP, headquartered in Philadelphia, tops this list with the largest team on record.
Which city in the United States has the most design patent law firms?
New York leads the United States with 307 headquartered companies, followed by Chicago (157) and Los Angeles (136). Philadelphia has 35.
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 3,062 verified decision-maker contacts tracked across these 35 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 28, 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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