Harry M. Byrne


  • Harry M. Byrne
  • Phone: +1 215 979 1136
    Fax: +1 215 689 4925

    Harry M. Byrne - LinkedIn Import to Address Book

  • Duane Morris LLP
    30 South 17th Street
    Philadelphia, PA 19103-4196

Harry M. Byrne is a trial attorney who practices in the areas of complex commercial, products liability, and mass tort litigation. He represents medical device manufacturers nationally in products liability matters, in both consolidated proceedings and single plaintiff actions, predominantly in the life sciences and transportation sectors. He represents medical device and pharmaceutical companies nationally in products liability matters in coordinated proceedings, as well as single-plaintiff actions.  

Mr. Byrne also represents Class I railroads in the defense of toxic tort claims alleging occupational exposure to various chemicals and substances, as well as in the defense of third party traumatic injury claims arising from crossing and trespasser-related incidents.  Mr. Byrne also has experience in commercial and business tort disputes, with an emphasis on non-compete, trade secrets and unfair competition litigation. 

Mr. Byrne is a magna cum laude graduate of Villanova University School of Law, where he was an articles editor for the Villanova Law Review and elected to the Order of the Coif, and a graduate of Pennsylvania State University. Prior to entering private practice, Mr. Byrne served as law clerk to the Honorable Susan Peikes Gantman of the Superior Court of Pennsylvania. He currently serves on the firm's Recruitment and Retention Committee.

Representative Matters

    Products Liability

  • Defended Baxter Healthcare Corporation in a products liability matter that involved a claim of product defect in their flagship dialysis products and obtained complete dismissal of all claims with prejudice. Baker v. Baxter Healthcare Corporation et al.

  • Representation of manufacturers of implanted medical devices and biologics in hundreds of product liability cases nationwide, in individual and consolidated proceedings.

  • Representation of Class I railroad in defense of claims alleging traumatic injury, wrongful death, and mass actions arising from claims of occupational exposure and cumulative injury, as well as in crossing and trespasser-related accidents.

  • Defended Class I railroad in trespasser cases alleging personal injury. Martinez v. CSX Transp., Inc., No. 13-cv-7305 (E.D. Pa.); Witcher v. CSX Transp., Inc., No. 17-cv-4563 (E.D. Pa.); and Ward v. CSX Transp., Inc., No. 19-cv-01029 (E.D. Pa.)

  • Obtained dismissal of Class I railroad for lack of standing in wrongful death case involving claims of occupational exposure. Long v. CSX Transportation, Inc.

  • Commercial Litigation

  • Obtained, on behalf of an employee of Stevens Insurance, an order vacating and dissolving an ex parte temporary restraining order entered against the Stevens employee. The Court then dismissed a subsequent motion for a preliminary injunction, leading the plaintiff to voluntarily dismiss their claims. ECBM, LP v. Chance, No. 20-cv-00830 (E.D. Pa.).

  • Secured, on behalf of Globus Medical, Inc., the denial of a motion for a preliminary injunction filed against four Globus employees by their former employer, for alleged violations of the employees’ non-competition agreements with their former employer.

  • Obtained on behalf of the Graham Company, a commercial insurance broker, a settlement in which the company received favorable settlement and consent injunction barring a former employee from soliciting clients and most prospects for two years.

  • Obtained summary judgment for a major bank in the Court of Common Pleas of Philadelphia County in an action seeking $10 million in damages against the bank for breach of a deposit agreement resulting in an alleged raid of customer assets by dissident executives.

  • Pro Bono

  • Obtained a decision from the Board of Veteran Appeals reversing and remanding a decision of the Regional Office of Veterans’ Affairs that had denied a petition for service-connected benefits of a US Navy Veteran. On remand, we obtained an award of back-dated benefits for the veteran, in addition to an increased monthly rate of future benefits.

  • Obtained plenary guardianship of a 21-year-old disabled woman in a pro bono representation on behalf of her mother and primary caregiver.

  • Represented the Pennsylvania Bar Association as an amicus curiae in a case before the Pennsylvania Supreme Court, which vacated the suspension of a Magisterial District Judge, as a result of ticket-fixing charges, and held that the high court has the power to suspend judges who are charged with a felony for conduct on the bench.


  • Pennsylvania
  • New Jersey
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. District Court for the Eastern District of Wisconsin
  • U.S. District Court for the District of Colorado
  • U.S. District Court for the Eastern District of Arkansas
  • U.S. District Court for the Western District of Arkansas


  • Villanova University Charles Widger School of Law, J.D., magna cum laude, 2011
    - Managing Editor–Articles, Villanova Law Review
    - Order of the Coif
  • The Pennsylvania State University, B.A., 2008


  • Duane Morris LLP
    - Associate, 2013-present
  • Superior Court of Pennsylvania
    - Law Clerk to the Hon. Susan Peikes Gantman, 2011-2013

Professional Activities

  • Philadelphia Bar Association
  • Pennsylvania Bar Association
  • 2018 National Trial Advocacy College

  • St. Joseph's Prep Alumni Association

Civic and Charitable Activities

  • St. Joseph's Prep Alumni Association

Selected Speaking Engagements

  • Presenter, "Lessons Learned from Recent Headlines and Court Rulings on Products Liability Cases Across Industries," Duane Morris COVID-19: Navigating Forward Webinar Series, April 22, 2021
  • Presenter, "Learn from the Experts: How to Leverage Scientific Experts to Develop Case Strategies," DRI Drug and Medical Device Conference, November 5, 2020