Yi Han Dulkeith, Ph.D.

Dr. Yi Han Dulkeith is a member of Steptoe's Intellectual Property group. Yi has over 15 years of experience in global patent portfolio development and management in biotechnology. She helps clients navigate patent landscape and develop patent filing strategies around their new products. Yi has extensive patent prosecution experience in a wide variety of technical areas including antibody therapeutics, cell therapies, gene therapies, diagnostics, and medical devices.

Beyond prosecution, Yi has vast experience in IP due diligence in connection with in-license opportunities, corporate acquisitions, and venture capital investment. She conducts freedom-to-operate and patent landscape analysis, product clearance investigation, and patent non-infringement and invalidity assessment.

In addition, Yi has experience in inter partes review (IPR) proceedings representing patent challengers and patent owners before the USPTO Patent Trial and Appeal Board (PTAB). She has also supported patent litigation matters involving biologics patents under the Biologics Price Competition and Innovation Act (BPCIA).

Prior to practicing law, Yi earned her Ph.D. and Master's degrees in Molecular, Cellular, and Developmental Biology from Yale University, where she pioneered an in-depth study on an alcohol metabolism gene and its protective role in preventing alcoholism. She published her findings in peer-reviewed scientific journals and presented at national conferences.