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James E. Hooper, Jr.


P. 303.244.1849 | F. 303.244.1879
"[An] incredible technical mind and ability to jump into an area he's not familiar with."
—Client comment to Chambers USA


James Hooper defends manufacturers in high-stakes and high-profile mass tort litigation involving complex scientific issues. He handles cases ranging from federal multidistrict litigation involving prescription medications to wrongful death lawsuits, and numerous product liability and commercial disputes in between. Jim is nationally ranked in Chambers USA for product liability and mass torts defense.

Jim joined WTO at its inception and became its first elected partner in 1998.  Jim is a West Point and Michigan Law School graduate who has spent the past 20 years helping American businesses defend complex, scientifically and technically challenging lawsuits in more than 20 states.  He has tried, served as national counsel, and litigated numerous types of lawsuits, ranging from products liability to civil RICO and federal land use.  His work most often centers on high-profile, large-exposure, and expert-intensive cases involving challenges to the design, risk and safety profiles, and marketing of pharmaceuticals, medical devices, building materials, and similar products.  Jim's cases have resulted in significant and helpful judicial decisions in the areas of expert scientific evidence, product safety warnings, and medical causation.  

Jim was elected by his peers to serve as a member of the Pfizer Legal Alliance (PLA) Roundtable, a strategic planning and oversight group for 19 nationally renowned law firms that provide legal services to the world's largest pharmaceutical company.  He is listed in Chambers USA, The Legal 500 US, International Who's Who of Life Sciences Lawyers, and Colorado Super Lawyers. Jim's clients described him to Chambers USA as "very talented in the courtroom, thoughtful and creative."   

Jim leads WTO's associate evaluation and training committee, helping to develop the firm's next generation of national caliber trial lawyers.


Publications & Speaking Engagements


  • Presenter, "Techniques for Effective Cross-Examination of Expert Witness," DRI 2024 Product Liability Conference, (February 7, 2024).
  • Presenter, "Punitive Damages," 27th Annual Conference of Colorado Defense Lawyers Association, (August 20, 2004).
  • Presenter, "Court-Appointed Experts," The Network of Trial Law Firms, (March 14, 2002).
  • Presenter, "The Future of Preemption," Defense Research Institute, (May 3, 2001).
  • Presenter, "Daubert and Differential Diagnosis," The Network of Trial Law Firms, (January 4, 2001).
  • "Bright Lines, Dark Deeds: Counting Convictions Under the Armed Career Criminal Act," 89 Mich. L. Rev. 1951, (1991).

Other Experience

King & Spalding (Atlanta)

Legal Memberships, Activities, and Honors

Chambers USA
   Product Liability - National, 2011-2023
The Best Lawyers in America
    Mass Tort Litigation/Class Actions - Defendants Lawyer of the Year, 2022, 2024
    Personal Injury Litigation - Defendants Lawyer of the Year, 2023
    Product Liability Litigation, 2014-2024
    Personal Injury Litigation, 2021-2024
    Mass Tort Litigation/Class Actions, 2021-2023
The Legal 500 United States
    Litigation: Product Liability and Mass Tort Defense, 2009-2012, 2015
Colorado Super Lawyers
   Super Lawyers, Personal Injury Defense: Products, 2012-2024
   Super Lawyers, Business Litigation, 2010-2011
Benchmark Litigation
    Local Litigation Star, 2020-2024
    Product Litigation - Colorado, 2016
    Commercial Litigation - Colorado, 2014-2015, 2017-2018
    Future Star - Colorado, 2011-2013
The International Who's Who of Life Sciences Lawyers, 2008-2017, 2019
The International Who's Who of Product Liability Defense Lawyers,
    2016-2017, 2019
Euromoney's Expert Guides - Litigation and Product Liability
Martindale-Hubbell AV® Peer Review Rated
Lawyers for Civil Justice
Defense Research Institute
    Drug and Medical Device Section
International Association of Defense Counsel
Denver Bar Association
Colorado Bar Association
American Bar Association
    Litigation Section

Teaching Positions

University of Denver Sturm College of Law
    Adjunct Professor

Personal Interests

Mountain sports

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