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, automotive components, financial software, search algorithms, image recognition algorithms, barcode decoding algorithms, telecommunications cables and pharmaceuticals.


  • Nexans Inc. and Berk-Tek LLC v. Belden Inc.: Led the defense of Nexans and affiliate Berk-Tek in the Federal Circuit, the District of Delaware, the Southern District of Indiana and before the PTAB against a competitor asserting four patents in the field of high speed telecommunications cables. Following successful IPRs invalidating 79 of the 81 asserted claims of the patents-in-suit, the Federal Circuit, in two separate opinions, affirmed the PTAB's invalidity findings of the asserted claims and reversed the PTAB's validity findings as to the remaining two claims, thus achieving a complete victory for Nexans and Berk-Tek. The Federal Circuit's reversal of the PTAB's validity findings represents the first time that the Federal Circuit reversed a PTAB validity finding in an AIA review.
  • AtopTech in an inter partes review proceeding challenging the validity of claims directed to static timing analysis tools used for designing integrated circuits. The IPRs resulted in all claims in trial being cancelled. ATopTech, Inc. v. Synopsys, Inc. (PTAB 2016).
  • Robert Bosch LLC and Robert Bosch GmbH in trade secret, copyright and state claims regarding automotive electric body control modules. JST Corporation v. Robert Bosch LLC and Robert Bosch GmbH.
  • 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 US 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).


New York Super Lawyers
"Rising Star" – Intellectual Property, Intellectual Property Litigation (2015-2018)


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

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