David M. Cohen

David Cohen works as science counsel in the defense of product liability and mass tort litigation. Building upon his early success at the fen-phen Daubert hearing in Philadelphia federal district court, David has spent the past two decades battling junk science allegations of general and specific causation, design defect, and failure to warn. He has cross examined more than 125 treating physicians and expert witnesses at deposition and evidentiary hearings. His team at Butler Snow includes lawyers with scientific degrees and a deep interest in the intersection of science, medicine, and the laws governing the admissibility of expert evidence at trial. David Cohen works as science counsel in the defense of product liability and mass tort litigation. Building upon his early success at the fen-phen Daubert hearing in Philadelphia federal district court, David has spent the past two decades battling junk science allegations of general and specific causation, design defect, and failure to warn. He has cross examined more than 125 treating physicians and expert witnesses at deposition and evidentiary hearings. His team at Butler Snow includes lawyers with scientific degrees and a deep interest in the intersection of science, medicine, and the laws governing the admissibility of expert evidence at trial. David Cohen works as science counsel in the defense of product liability and mass tort litigation. Building upon his early success at the fen-phen Daubert hearing in Philadelphia federal district court, David has spent the past two decades battling junk science allegations of general and specific causation, design defect, and failure to warn. He has cross examined more than 125 treating physicians and expert witnesses at deposition and evidentiary hearings. His team at Butler Snow includes lawyers with scientific degrees and a deep interest in the intersection of science, medicine, and the laws governing the admissibility of expert evidence at trial.