Duane Morris

aid: duane-morris
name: Duane Morris
description: Duane Morris LLP is a Philadelphia-headquartered, full-service U.S. and international law firm founded in 1904
  by Russell Duane, Steven Heckscher, and Roland S. Morris. Chaired by Matthew A. Taylor, the firm describes itself as "a
  law firm with more than 900 attorneys in offices across the United States and internationally" — with a U.S. footprint spanning
  the East Coast, Texas, the Mountain West, and California, plus international offices in London, Singapore, Vietnam (Hanoi,
  Ho Chi Minh City), Shanghai, Myanmar, and joint ventures/alliances reaching Mexico and Latin America. An Am Law 100 firm
  since 2001, Duane Morris is known for depth in intellectual property (including patent prosecution and PTAB practice), trial
  and appellate litigation, real estate, corporate transactions, employment, healthcare, cannabis, and life sciences. The
  firm publishes an extensive LexBlog-powered thought-leadership network of more than 50 practice-area blogs, all of which
  expose RSS 2.0 feeds via the standard WordPress /feed/ convention. Duane Morris does not expose any public developer API,
  SDK, OpenAPI/AsyncAPI spec, GraphQL endpoint, webhooks, status page, or developer portal; the GitHub organization github.com/duanemorris
  exists but has no public repositories. The firm's only machine-readable surfaces are the RSS feeds of its blog network.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/duane-morris.png
url: https://raw.githubusercontent.com/api-evangelist/duane-morris/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
kind: company
tags:
- Antitrust
- Appellate
- Arbitration
- Banking
- Bankruptcy
- Cannabis
- Capital Markets
- Class Action
- Construction
- Corporate
- Cybersecurity
- Data Privacy
- Education
- Employment Law
- Energy
- Environmental
- ESG
- Fintech
- Franchise
- Gaming
- Healthcare
- Immigration
- Insurance
- Intellectual Property
- International Arbitration
- International Law
- Labor
- Law
- Law Firm
- Legal
- Legal Services
- Life Sciences
- Litigation
- Mergers and Acquisitions
- Patents
- PFAS
- Private Equity
- Products Liability
- Real Estate
- Regulatory
- Securities
- Sports
- Sustainability
- Tax
- Technology
- Trade Secrets
- Transportation
- White Collar Defense
apis: []
common:
- type: DomainSecurity
  url: security/duane-morris-domain-security.yml
- type: Website
  url: https://www.duanemorris.com
- type: About
  url: https://www.duanemorris.com/site/about.html
- type: Practice Areas
  url: https://www.duanemorris.com/site/practiceareas.html
- type: Offices
  url: https://www.duanemorris.com/site/offices.html
- type: Attorneys
  url: https://www.duanemorris.com/site/attorneys.html
- type: News
  url: https://www.duanemorris.com/site/news.html
- type: Alerts
  url: https://www.duanemorris.com/site/alerts.html
- type: Blog
  url: https://blogs.duanemorris.com
- type: GitHub
  url: https://github.com/duanemorris
- type: LinkedIn
  url: https://www.linkedin.com/company/duane-morris-llp
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/Duane_Morris
- type: Contact
  url: https://www.duanemorris.com/site/contact.html
x-firm-profile:
  founded: '1904'
  founders:
  - Russell Duane
  - Steven Heckscher
  - Roland S. Morris
  headquarters: 30 South 17th Street, Philadelphia, Pennsylvania
  chair: Matthew A. Taylor
  coo: Charles J. O'Donnell
  lawyers: 900+
  offices: 30+
  revenue: $526.23 million USD (2021, per Wikipedia citing Am Law)
  profit_per_equity_partner: $1.081 million USD (2021)
  structure: Limited Liability Partnership (LLP)
  am_law_ranking: Am Law 200
  am_law_status: Am Law 100 member since 2001
  positioning: '"A law firm with more than 900 attorneys in offices across the United States and internationally, is asked
    by a broad array of clients to provide innovative solutions to today''s legal and business challenges."'
  notable_achievement: 16 consecutive years of revenue growth
  hbs_case_study: 'Duane Morris: Collaborating for Growth'
x-practice-areas:
- ADA Title III Compliance
- Animal Law
- Antitrust
- Appellate
- Artificial Intelligence
- Banking and Finance
- Bankruptcy and Business Reorganization
- Benefits and Executive Compensation
- Cannabis
- Capital Markets
- Class Action Defense
- Construction
- Corporate
- Delaware Business Law
- Discovery Strategy and Data Analytics
- Education
- Energy and Environmental
- European Sanctions Enforcement
- Fashion, Retail and Consumer Branded Products
- Fintech
- Franchise
- Gaming
- Health Law
- Immigration
- Insurance
- Intellectual Property
- International Arbitration
- Labor and Employment
- Lender Liability and Loan Enforcement
- Life Sciences
- Mergers and Acquisitions
- New Markets Tax Credits and Affordable Housing
- Non-Compete and Trade Secrets
- Opportunity Zones
- PFAS and Environmental Mass Tort
- Private Client Services (Wealth Planning)
- Pro Bono
- Products Liability
- Project Development, Infrastructure and P3
- PTAB Practice
- Real Estate
- Securities Arbitration
- Sports Law
- State Attorneys General Practice
- Sustainability, Resiliency and Risk Mitigation (ESG)
- Tax
- Technology Law
- Transportation, Automotive and Logistics
- Trial and Litigation
- White Collar Criminal Defense
x-industries:
- Banking and Finance
- Cannabis
- Construction
- Education
- Energy
- Fashion and Retail
- Gaming and Sports
- Healthcare
- Insurance
- Life Sciences and Biotech
- Manufacturing
- Real Estate
- Technology
- Transportation
x-offices-us:
- Atlanta
- Austin
- Baltimore
- Berwyn (satellite)
- Boca Raton
- Boston
- Chicago
- Dallas
- Fort Worth
- Houston
- Las Vegas
- Los Angeles
- Miami
- New York
- North Jersey
- Philadelphia
- Pittsburgh
- Portland (Maine, satellite)
- San Diego
- San Francisco
- Seattle (satellite)
- Silicon Valley
- South Jersey
- Washington, DC
- Wilmington
x-offices-international:
- Hanoi, Vietnam
- Ho Chi Minh City, Vietnam
- London, United Kingdom
- Myanmar (Yangon)
- Shanghai, China (joint venture)
- Singapore (Duane Morris and Selvam joint venture)
x-international-alliances:
- Mexico
- Latin America
x-mergers:
- name: Satterlee Stephens
  year: 2020-01
  location: New York
  note: New York-based firm absorbed in January 2020.
x-notable-cases:
- name: Markman v. Westview Instruments, Inc.
  type: Patent infringement (US Supreme Court precedent on claim construction)
- name: Tobacco Master Settlement Agreement
  year: '1998'
  note: Represented Pennsylvania in the 46-state litigation resulting in the ~$206 billion settlement with the major tobacco
    companies.
x-notable-alumni:
- Roland S. Morris (US Ambassador to Japan; founding partner)
- Michael Baylson (US District Judge, Eastern District of Pennsylvania)
- Gene E. K. Pratter (US District Judge)
- Marjorie Rendell (US Court of Appeals for the Third Circuit)
- Mark Singel (Lieutenant Governor of Pennsylvania, 1987-1995)
x-blogs:
- name: ADA Title III Compliance
  url: https://blogs.duanemorris.com/adatitleiiicompliance/
  rss: https://blogs.duanemorris.com/adatitleiiicompliance/feed/
  topic: Disability access compliance
- name: Animal Law Developments
  url: https://blogs.duanemorris.com/animallawdevelopments/
  rss: https://blogs.duanemorris.com/animallawdevelopments/feed/
  topic: Animal law
- name: Antitrust Law
  url: https://blogs.duanemorris.com/antitrustlaw/
  rss: https://blogs.duanemorris.com/antitrustlaw/feed/
  topic: Antitrust and competition
- name: Appellate Review
  url: https://blogs.duanemorris.com/appellatelaw/
  rss: https://blogs.duanemorris.com/appellatelaw/feed/
  topic: Appellate law
- name: The Artificial Intelligence Blog
  url: https://blogs.duanemorris.com/artificialintelligence/
  rss: https://blogs.duanemorris.com/artificialintelligence/feed/
  topic: AI law and regulation
- name: Banking and Finance Law
  url: https://blogs.duanemorris.com/bankinglaw/
  rss: https://blogs.duanemorris.com/bankinglaw/feed/
  topic: Banking and finance
- name: Benefits Law
  url: https://blogs.duanemorris.com/benefitslaw/
  rss: https://blogs.duanemorris.com/benefitslaw/feed/
  topic: Employee benefits
- name: Business Reorganization and Financial Restructuring
  url: https://blogs.duanemorris.com/businessreorganizationfinancialrestructuring/
  rss: https://blogs.duanemorris.com/businessreorganizationfinancialrestructuring/feed/
  topic: Bankruptcy and restructuring
- name: Cannabis Industry
  url: https://blogs.duanemorris.com/cannabis/
  rss: https://blogs.duanemorris.com/cannabis/feed/
  topic: Cannabis law and regulation
- name: Capital Markets
  url: https://blogs.duanemorris.com/capitalmarkets/
  rss: https://blogs.duanemorris.com/capitalmarkets/feed/
  topic: Securities and capital markets
- name: Class Action Defense
  url: https://blogs.duanemorris.com/classactiondefense/
  rss: https://blogs.duanemorris.com/classactiondefense/feed/
  topic: Class action litigation defense
- name: Concerted Action - Labor Blog
  url: https://blogs.duanemorris.com/laborlaw/
  rss: https://blogs.duanemorris.com/laborlaw/feed/
  topic: Labor and employment
- name: Construction Law
  url: https://blogs.duanemorris.com/constructionlaw/
  rss: https://blogs.duanemorris.com/constructionlaw/feed/
  topic: Construction
- name: Coronavirus (COVID-19)
  url: https://blogs.duanemorris.com/coronaviruscovid19/
  rss: https://blogs.duanemorris.com/coronaviruscovid19/feed/
  topic: Pandemic-related legal updates (archive)
- name: Cuba, Puerto Rico and the Caribbean
  url: https://blogs.duanemorris.com/puertoricoandcaribbean/
  rss: https://blogs.duanemorris.com/puertoricoandcaribbean/feed/
  topic: Regional law
- name: Discovery Strategy and Data Analytics
  url: https://blogs.duanemorris.com/discoverystrategy/
  rss: https://blogs.duanemorris.com/discoverystrategy/feed/
  topic: E-discovery and analytics
- name: Diversity and Inclusion
  url: https://blogs.duanemorris.com/diversityandinclusion/
  rss: https://blogs.duanemorris.com/diversityandinclusion/feed/
  topic: DE&I and workplace
- name: Delaware Business Law
  url: https://blogs.duanemorris.com/delawarebusinesslaw/
  rss: https://blogs.duanemorris.com/delawarebusinesslaw/feed/
  topic: Delaware corporate law
- name: Duane Morris Institute
  url: https://duanemorrisinstitute.com/blog/
  rss: https://duanemorrisinstitute.com/blog/feed/
  topic: Employment and workplace law (institute)
- name: Duane Morris and Selvam
  url: https://blogs.duanemorris.com/duanemorrisandselvam/
  rss: https://blogs.duanemorris.com/duanemorrisandselvam/feed/
  topic: Singapore joint venture practice
- name: Duane Morris London
  url: https://blogs.duanemorris.com/london/
  rss: https://blogs.duanemorris.com/london/feed/
  topic: UK practice
- name: 'UpdateED: Education Law'
  url: https://blogs.duanemorris.com/updateeducation/
  rss: https://blogs.duanemorris.com/updateeducation/feed/
  topic: Education law
- name: Energy and Environmental
  url: https://blogs.duanemorris.com/energyenvironmental/
  rss: https://blogs.duanemorris.com/energyenvironmental/feed/
  topic: Energy and environmental
- name: European Sanctions Enforcement
  url: https://blogs.duanemorris.com/europeansanctionsenforcement/
  rss: https://blogs.duanemorris.com/europeansanctionsenforcement/feed/
  topic: European sanctions
- name: Fashion, Retail and Consumer Branded Products
  url: https://blogs.duanemorris.com/fashionretailbrandedconsumergoods/
  rss: https://blogs.duanemorris.com/fashionretailbrandedconsumergoods/feed/
  topic: Fashion and retail law
- name: Fintechnically Speaking
  url: https://blogs.duanemorris.com/fintech/
  rss: https://blogs.duanemorris.com/fintech/feed/
  topic: Fintech law
- name: Franchise Law
  url: https://blogs.duanemorris.com/franchiselaw/
  rss: https://blogs.duanemorris.com/franchiselaw/feed/
  topic: Franchise law
- name: Gaming Law
  url: https://blogs.duanemorris.com/gaminglaw/
  rss: https://blogs.duanemorris.com/gaminglaw/feed/
  topic: Gaming and sports betting
- name: Green IP
  url: https://blogs.duanemorris.com/greenip/
  rss: https://blogs.duanemorris.com/greenip/feed/
  topic: IP and sustainability
- name: Health Law
  url: https://blogs.duanemorris.com/healthlaw/
  rss: https://blogs.duanemorris.com/healthlaw/feed/
  topic: Healthcare law
- name: Immigration Law
  url: https://blogs.duanemorris.com/immigrationlaw/
  rss: https://blogs.duanemorris.com/immigrationlaw/feed/
  topic: Immigration
- name: Insurance Law
  url: https://blogs.duanemorris.com/insurancelaw/
  rss: https://blogs.duanemorris.com/insurancelaw/feed/
  topic: Insurance
- name: International Arbitration
  url: https://blogs.duanemorris.com/internationalarbitration/
  rss: https://blogs.duanemorris.com/internationalarbitration/feed/
  topic: International arbitration
- name: The Legal Dish
  url: https://blogs.duanemorris.com/thelegaldish/
  rss: https://blogs.duanemorris.com/thelegaldish/feed/
  topic: Food, beverage, and hospitality
- name: Lender Liability and Loan Enforcement
  url: https://blogs.duanemorris.com/lenderliabilityandloanenforcement/
  rss: https://blogs.duanemorris.com/lenderliabilityandloanenforcement/feed/
  topic: Banking and lending litigation
- name: Life Sciences Law
  url: https://blogs.duanemorris.com/lifescienceslaw/
  rss: https://blogs.duanemorris.com/lifescienceslaw/feed/
  topic: Biotech and life sciences
- name: New Markets Tax Credit, Historic Tax Credits, and Affordable Housing
  url: https://blogs.duanemorris.com/newmarketslaw/
  rss: https://blogs.duanemorris.com/newmarketslaw/feed/
  topic: Tax credits and affordable housing
- name: Non-Compete and Trade Secrets Law
  url: https://blogs.duanemorris.com/tradesecretslaw/
  rss: https://blogs.duanemorris.com/tradesecretslaw/feed/
  topic: Trade secrets and restrictive covenants
- name: Opportunity Zones - Insights From the Land of OZ
  url: https://blogs.duanemorris.com/opportunityzones/
  rss: https://blogs.duanemorris.com/opportunityzones/feed/
  topic: Opportunity Zone tax law
- name: PFAS
  url: https://blogs.duanemorris.com/pfas/
  rss: https://blogs.duanemorris.com/pfas/feed/
  topic: PFAS environmental law
- name: Private Client Services
  url: https://blogs.duanemorris.com/wealthplanning/
  rss: https://blogs.duanemorris.com/wealthplanning/feed/
  topic: Wealth and estate planning
- name: Pro Bono
  url: https://blogs.duanemorris.com/probonolaw/
  rss: https://blogs.duanemorris.com/probonolaw/feed/
  topic: Pro bono practice
- name: Products Liability
  url: https://blogs.duanemorris.com/productsliability/
  rss: https://blogs.duanemorris.com/productsliability/feed/
  topic: Products liability litigation
- name: Project Development, Infrastructure and P3
  url: https://blogs.duanemorris.com/projectdevelopmentinfrastructurep3/
  rss: https://blogs.duanemorris.com/projectdevelopmentinfrastructurep3/feed/
  topic: Infrastructure and public-private partnerships
- name: PTAB Practice
  url: https://blogs.duanemorris.com/ptab/
  rss: https://blogs.duanemorris.com/ptab/feed/
  topic: Patent Trial and Appeal Board practice
- name: Securities Arbitration
  url: https://blogs.duanemorris.com/securitiesarbitration/
  rss: https://blogs.duanemorris.com/securitiesarbitration/feed/
  topic: Securities arbitration
- name: Sports Law
  url: https://blogs.duanemorris.com/sportslaw/
  rss: https://blogs.duanemorris.com/sportslaw/feed/
  topic: Sports law
- name: State Attorneys General
  url: https://blogs.duanemorris.com/stateattorneysgeneral/
  rss: https://blogs.duanemorris.com/stateattorneysgeneral/feed/
  topic: State AG regulatory practice
- name: Sustainability, Resiliency and Risk Mitigation
  url: https://blogs.duanemorris.com/esg/
  rss: https://blogs.duanemorris.com/esg/feed/
  topic: ESG and sustainability
- name: TechLaw
  url: https://blogs.duanemorris.com/techlaw/
  rss: https://blogs.duanemorris.com/techlaw/feed/
  topic: Technology law
- name: Transportation, Automotive and Logistics
  url: https://blogs.duanemorris.com/transportation/
  rss: https://blogs.duanemorris.com/transportation/feed/
  topic: Transportation law
- name: UK Employment Law Update
  url: https://blogs.duanemorris.com/ukemploymentupdate/
  rss: https://blogs.duanemorris.com/ukemploymentupdate/feed/
  topic: UK labor and employment
- name: Vietnam
  url: https://blogs.duanemorris.com/vietnam/
  rss: https://blogs.duanemorris.com/vietnam/feed/
  topic: Vietnam practice
- name: White Collar Criminal Law
  url: https://blogs.duanemorris.com/whitecollarcriminallaw/
  rss: https://blogs.duanemorris.com/whitecollarcriminallaw/feed/
  topic: White collar criminal defense
x-developer-surface: none
x-developer-surface-notes: Duane Morris LLP publishes no public developer API, SDK, CLI, OpenAPI or AsyncAPI specification,
  JSON Schema, GraphQL endpoint, webhooks, status page, or developer portal. The GitHub organization at https://github.com/duanemorris
  exists but holds no public repositories. The only machine-readable surfaces produced by the firm are the RSS 2.0 feeds exposed
  by its LexBlog-hosted blog network — more than 50 practice and industry blogs at blogs.duanemorris.com (and the Duane Morris
  Institute at duanemorrisinstitute.com), each reachable via the standard WordPress /feed/ convention. RSS validity has been
  spot-confirmed on the Class Action Defense, Cannabis Industry, Artificial Intelligence, and Duane Morris Institute feeds.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com