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Patrick J. (Pat) Whalen


Spencer Fane attorney Pat Whalen

T 816.292.8237
F 816.474.3216

Pat serves as Chairman and Managing Partner of Spencer Fane.

Among other distinctions, Pat has been recognized by clients and colleagues as:

  • One of the best in the country in delivering outstanding client service to General Counsel of the world’s largest companies, including recognition as one of the top 30 IP lawyers in the country (BTI Consulting, Law360).
  • One of the Nation’s CyberSecurity & Data Privacy Trailblazers (National Law Journal).
  • Among the best in the world in Internet & E-commerce Law (Business Research, Ltd.).
  • The top choice for IP Litigation (Kansas City Business Magazine).
  • A Law Firm Leader of the Year for driving greater value and efficiency to clients while growing Spencer Fane (Missouri Lawyers Weekly).
  • One of the 250 Most Influential Business Leaders in the Region (Ingram’s Business Magazine).

Highlights of Pat Whalen’s experience include:

  • Counseled financial institutions in all aspects of their data breach response strategy.
  • First-chaired dozens of jury trials and arbitrations throughout the country, secured seven-figure jury verdicts, and defended financial services firms against investor and customer claims.
  • Defended patent infringement suits brought in the Eastern District of Texas and before the International Trade Commission.

Civic Involvement

  • Civic Council of Greater Kansas City
  • Board of Directors, Kansas City Area Development Council
  • Heartland Civic Collaborative Committee
  • St. Louis Regional Chamber

Industry Involvement

  • Advisory Committee, Managing Partner Institute
  • Advisory Board, Legal Project Management
  • ABA Committee on Productivity & Knowledge Strategy
  • ABA Committee on Legal Project Management
  • Former Chair of the Intellectual Property Committee of the American Bar Association’s Business Law Section.
  • Former faculty of PLI’s Annual Advanced Licensing Seminar


  • Co-Author, Intellectual Property Deskbook for the Business Lawyer (ABA, 2019)
  • Co-Author, Advising Small Business (Thompson/West, 2017)
  • Co-Author, Global Business Law (2008)
  • Co-Author, Domestic and International Litigation Strategies (Aspatore, 2007)


  • “When to Send a Data Breach Notification”, BankNews.com, March 2015
  • “Compliance Challenges When Directing Social Media”, Thinking Bigger Business Media, January 2012
  • “Non-Disclosure Agreements”, Inside Supply Management, August 2006
  • “Covenants Not to Compete and Trade Secrets”, Missouri Practice, 2006 ed.
  • “Uniform Trade Secret Act and the Inevitable Disclosure Doctrine”; Business Torts Handbook
  • “Digital Signatures and the Next Wave of Electronic Commerce,” Kansas City Small Business Monthly
  • “Jury Decision Making as a Strategic Decision Making Process”, Midwest Academy of Legal Studies in Business

Presentations and Speaking Engagements

  • CyberLiability: Assessing Data Security & Privacy Risks (Association of Corporate Counsel; Kansas City, Omaha)
  • Insulating Your Company From a Data Breach (Denver; St. Louis; with AIG, Jordan Lawrence, and Informatica)
  • Cloud Computing, (ABA Annual Meeting, San Francisco)
  • Reps and Warranties in Cross-Border IP Transactions, (ABA Annual Meeting, Chicago)
  • Advanced Licensing Agreements (Practicing Law Institute, Chicago)
  • Monetizing Intellectual Property (ABA Annual Meeting, New York City)
  • Copyright Disputes in Outsourcing Transactions (ABA Annual Meeting, San Francisco)
  • Keynote Speech, Gartner Compliance, Governance and Risk Management Summit (Chicago)
  • Patent Infringement Warranties (ABA, Washington D.C.)
  • Addressing Patent Infringement Risks in Your Transaction (Chair), (ABA Business Law Section Meetings, Washington, D.C.)
  • Financial Institutions and Intellectual Property Risks (Missouri Banker’s Association)
  • Trade Secrets Protection Strategies (Lorman Education Services, Kansas City, Missouri); The Missouri Bar Annual Update
  • E-Commerce Conference on Emerging Business and Legal Models (Conference Chair and speaker, Overland Park, Kansas)
  • CyberCrime in Electronic Commerce (Miami, Florida)
  • Emerging Internet Legal Developments (Kansas City, Missouri)
  • The Evolving Legal Environment for Electronic Commerce (Deloitte & Touche Corporate Counsel Forum, Kansas City, Missouri)
  • E-Commerce Strategies in the Automotive Parts Industry (Clemson University Annual Conference, Hilton Head, South Carolina)
  • CyberSabotage (Miami, Florida Marcus Evans)
  • Protecting Intellectual Property (The Missouri Bar Annual Meeting, Kansas City, Missouri)
  • Discovery of Electronic Evidence (with Deloitte & Touche, St. Louis, Missouri and Overland Park, Kansas)
  • Internet Law (National Business Institute)

  • Electronic Discovery in Corporation Litigation (The Missouri Bar Annual Convention)
  • Trade Secrets: Litigation and Transactions (Los Angeles, Law Seminars International)
  • Outsourcing and The Protection of Your Company’s Intellectual Property (Chairman & Speaker, American Bar Association, Chicago, Illinois)
  • Sarbanes-Oxley and Intellectual Property (Chair, ABA Business Law Section Annual Meeting, Tampa)
  • Preventing Corporate Espionage (National Association of Purchase Managers)


  • Previously recognized as one of the city’s Top 40 Business Leaders Under 40
  • Selected for inclusion in Missouri & Kansas Super Lawyers®, 2008-2018

Contact Pat Whalen at 816.292.8237 or pwhalen@spencerfane.com.

Click here to connect with Pat on LinkedIn.