David Soofian focuses on patent litigation in federal district courts, post-grant patent proceedings at the United States Patent and Trademark Office's (USPTO) Patent Trial and Appeals Board, appeals before the Court of Appeals for the Federal Circuit and client counseling matters. He has also prosecuted patent applications (prepared and prosecuted patent applications) at the USPTO.

Mr. Soofian has a degree in electrical engineering and has worked with technologies in a variety of fields, including telecommunication protocols (e-mail, VoIP), underlying network protocols (signaling, synchronization, packet management), light circuits, jet engines, financial software, search algorithms, image recognition algorithms, barcode decoding algorithms, telecommunications cables and pharmaceuticals.


  • Berk-Tek in the invalidation of 79 claims in four IPRs before the Patent Trial and Appeal Board (PTAB), 74 of which were being asserted against Berk-Tek in a parallel proceeding in the District of Delaware. Berk-Tek, LLC v. Belden Inc. (Lead associate on team).
  • Pfizer in preserving patent exclusivity for its blockbuster drug Viagra®, defeating a challenge by Teva Pharmaceuticals USA Inc., which sought FDA approval to sell a generic version of the drug. Pfizer Inc., et al. v. Teva Pharmaceuticals USA Inc.The court subsequently awarded Pfizer attorney fees. (Member, trial team).
  • CLS Bank in obtaining summary judgment in the U.S. District Court for the District of Columbia for four asserted patents related to a computer implemented method and apparatus for intermediated settlement. CLS Bank Int'l v. Alice Corp. Pty. Ltd., 768 F. Supp.2d 221 (D.D.C. 2011). (Member, litigation team).


  • JD, Benjamin N. Cardozo School of Law, 2009, Benjamin N. Cardozo Writing Award; Associate Editor for the Journal of Law and Gender
  • BA, Yeshiva University, 2005
  • BS, Columbia University, 2004
  • New York
  • US District Courts for the Southern and Eastern Districts of New York
  • US Patent and Trademark Office
  • US Court of Appeals for the Federal Circuit

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