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Jay M. Mattappally




Jay focuses his practice in complex litigation, including the defense of medical device and pharmaceutical manufacturers. Within this area, Jay utilizes his scientific background to work closely with technical witnesses and experts, as well as investigate complex scientific issues relevant to a particular case. Jay is also experienced in all phases of the litigation process, including discovery, motion practice, trial preparation, and trial. Before attending law school, Jay received an undergraduate degree in Biomedical Engineering with a minor in Mathematics, during which time Jay performed extensive research and literature review on medical implants used in orthopedic/fracture applications. Jay also helped lead a team design project to design a mounting system for a patient with Muscular Dystrophy. After college, Jay received a Master’s degree in Engineering Management with a focus on assisting medical device companies in the market assessment of their respective technology platforms. Prior to joining Irwin Fritchie, Jay worked with corporate clients on scientific and legal issues involving a variety of complex technologies in the field of intellectual property.



  • Louisiana Super Lawyers, Rising Star 2017-2019
  • Loyola Law Review
  • Loyola Moot Court
  • William L. Crowe Scholar
  • Willem C. Vis International Commercial Arbitration Moot Team, Vienna, Austria (2012-13), Honorable Mention, Best Memorandum for Claimant


  • Lawyers for Civil Justice, Civil Justice Fellow - Inaugural Class (2019-2022), Diversity and Young Lawyers Committee
  • Defense Research Institute, Drug and Medical Device Committee, Regional Marketing Team
  • New Orleans Bar Association, Drug and Device Committee
  • American Bar Association, Expert Witness Committee
  • Louisiana State Bar Association


  • J.D.,magna cum laude, Loyola University College of Law (2013)
  • M.E.M., Master of Engineering Management, Duke University (2009)
  • B.S.E., Biomedical Engineering,departmental honors, Mathematics (minor), Tulane University (2008)


  • Louisiana state courts
  • United States Court of Appeals, Fifth Circuit
  • United States District Court for the Eastern, Middle, and Western Districts of Louisiana
  • United States Patent & Trademark Office

Publications and Presentations