Charles Wizenfeld

Charles Wizenfeld

Charles Witzenfeld, Associate

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Mr. Wizenfeld has participated in all aspects of patent litigation in district court and the International Trade Commission, including multiple trials and appeals. His practice focuses primarily on the electrical and computer arts, and he has worked on cases involving diverse technologies including LEDs, computer networking devices, predistortion circuitry for use in optical transmitters, internet telephony, visual voicemail, and automated systems for trading securities for various clients.

Before joining Mishcon, Mr. Wizenfeld was an associate in Goodwin Procter’s litigation department where he represented both plaintiffs and defendants in complex patent disputes.

Mr. Wizenfeld earned his J.D. from Fordham University School of Law. Before law school, he earned his Bachelors degree in Physics with a minor in Mathematics from Yeshiva University.

Key Experience

  • In re Certain Light-Emitting Diodes and Products Containing the Same, ITC Investigations 337-TA-784 and 337-TA-802. Represented OSRAM in multiple ITC investigations concerning light emitting diodes.
  • Pfizer Inc. et al. v. Teva Pharms. USA, Inc., (E.D.Va.) Represented Teva in litigation and Federal Circuit appeal involving patent covering use of sildenafil.
  • Fenner Investments, Ltd. v. Hewlett-Packard Co. et al., (E.D.Tex.) Represented Hewlett-Packard Co. in patent litigation involving network routers and switches.
  • Chicago Board Options Exchange, Inc. v. International Securities Exchange, LLC (N.D.Ill.) Represented patentee in litigation and Federal Circuit appeal involving automated systems for trading options contracts.
  • Optium Corp. v. Emcore Corp. et al. (W.D.Pa.) Represented Optium Corp. in patent litigation and Federal Circuit appeal involving optical transmitters.
  • The Hertz Corp. et al. v. Enterprise Rent-A-Car Co. et al. (D.Mass.) Represented The Hertz Corporation in declaratory judgment action involving patent and antitrust issues relating to insurance replacement rental systems.