Marc Wefers

Principal | Boston | 617-521-7857 |

Marc Wefers is a Principal in the Boston office of Fish & Richardson. He joined the firm in 1996, having previously served as an associate, patent agent, and technology specialist with the firm.

Marc’s practice focuses on patent strategy, including patent prosecution, adversarial proceedings before the United States Patent and Trademark Office (USPTO), and litigation, especially in the technical areas of physics, optics, and chemistry. Marc has been lead counsel on four interferences before the USPTO, obtaining a favorable judgment in every instance, one of which was appealed and affirmed at the United States Court of Appeals for the Federal Circuit. He is currently lead counsel on two inter-partes review (“IPR”) proceedings at the USPTO, and has been involved in five inter-partes reexamination proceedings at the USPTO.

Representative clients and technologies include: Carl Zeiss SMT GmbH (optical microlithography equipment), Fujifilm Electronic Materials USA, Inc. (semiconductor chemistry), IPG Photonics Inc. (fiber lasers and amplifiers), Osram Opto Semiconductors GmbH (light-emitting diodes), WiTricity Inc. (wireless power transfer), and Zygo Corporation (optical interferometry). Several of Marc’s former start-up clients were acquired on favorable terms: Ahura Scientific Inc. (acquired by Thermo Fisher Scientific in 2010 for $145 million) and Rhythmia Medical Inc. (acquired by Boston Scientific in 2012 for $90 million, and an additional $175 million in contingent payments).


  • Massachusetts 2002
  • United States Patent and Trademark Office 2005
  • United States Court of Appeals for the Federal Circuit 2010


Selected Speeches and Publications
  • “Space-time profiles of shaped ultrafast optical waveforms,” with K.A. Nelson, IEEE J. Quan. Elec. 32, 161 (1996).
  • “Generation of high-fidelity programmable ultrafast optical waveforms,” with K.A. Nelson, Opt. Lett. 20, 1047 (1995).
Awards and Honors
  • M.M. Wefers, K.A. Nelson, “Multi-Dimensional Shaping of Ultrashort Optical Waveforms,” U.S. Patent No. 5,682,262;
  • M.M. Wefers, K.A. Nelson, “Mask Design for High Fidelity Generation of Programmable Femtosecond Waveforms Using Liquid Crystal Spatial Light Modulators,” U.S. Patent No. 5,719,650.
  • BS, University of Toronto 1991
    Chemical Physics
    with highest distinction
  • PhD, Massachusetts Institute of Technology 1996
    Physical Chemistry
  • JD, Suffolk University Law School 2002
    magna cum laude

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