Elisabeth Hunt represents clients primarily in post-grant contested matters before the Patent and Trial Appeal Board (PTAB) as lead counsel in inter partes review (IPR), post-grant review (PGR) and patent reexamination proceedings. Elisabeth is also experienced in US and foreign patent prosecution, and counsels clients in developing IP portfolio strategies that complement and enhance their business objectives, and is experienced in providing studies and opinions including IP due diligence, freedom-to-operate, competitive landscape, patentability and infringement studies, as well as litigation support.

Elisabeth’s technical experience spans a wide range of electrical and computer technologies, including speech technology, language understanding, machine learning, 3D printing, media technology, accessibility technology, social networking, gaming, financial transactions, data storage and recovery, signal processing, software and electronics.

Elisabeth's PhD research at MIT's Speech Communication Lab involved acoustic analysis for improved lexical access and speech recognition models. During graduate school, Elisabeth was a teaching assistant for signal processing and an editor for American Journal Experts. Elisabeth also held previous research positions at Lucent Technologies on indium phosphide heterojunction bipolar transistors for lightwave and wireless applications, at Princeton University on thin-film liquid dip-coating for macroelectronics fabrication and at International Solar Electric Technology on copper indium gallium selenide photovoltaics.



  • Lead counsel for our client RPX, a leading provider of patent risk solutions, in three IPRs challenging a patent asserted a by non-practicing entity against 29 large technology companies. Exposed a defect in patent’s priority claim and developed a corresponding invalidity ground resulting in dismissal of all lawsuits and disclaimer of the patent. (IPR2017-00208, IPR2017-00209, IPR2017-00212)
  • As lead counsel for our client Formlabs, a 3D printing technology developer and manufacturer, filed IPR challenging competitor's patent asserted against our client in litigation, and successfully invalidated all challenged claims. (IPR2017-01258)
  • For our client RPX, obtained final written decisions canceling all challenged claims in three IPRs against two patents asserted by a non-practicing entity, and obtained the first-ever sanction of attorneys’ fees awarded by the PTAB against a party. Sanctions were imposed for a protective order violation. (IPR2015-01750, IPR2015-01751, IPR2015-01752)
  • Prepared patent owner’s responses for our client EMC in multiple IPRs filed by defendant in infringement litigation, exposing deficiencies resulting in denial of the IPRs.
  • Represented patent owner Nuance Communications, Inc. in multiple ex parte reexamination proceedings resolved with all original patent claims confirmed. (e.g., 90/013,878; 90/011,126)
  • Prepared and prosecuted patent applications in many diverse fields, such as natural language understanding, automatic speech recognition, speech synthesis, healthcare automation, artificial intelligence and machine learning, knowledge representation, social networking, media technology, financial transactions, accessibility technology, casino gaming, data storage and recovery, networking and communications, security, signal processing, image processing, software and microprocessor design.
  • Advised clients in assessing technological development initiatives and developing strategies for focused patent protection. Developed strategies and value assessments for pursuing international patent protection for software and business-related innovations in light of widely differing legal treatment in various countries around the world.
  • Identified and exercised opportunities for client to mine previously purchased portfolio of patent applications for early-priority claims covering newly marketable technologies.
  • Conducted prior art searches and analyses for freedom to operate and patentability.
  • Conducted infringement analyses and provided litigation support for patent owners defending their technology against encroachment by competitors. Provided in-depth technical analyses of plaintiff’s patents and infringer’s products used in identifying the best patents to assert.

Elisabeth has been named a Rising Star by Super Lawyers, as well as a Rising Star by Managing IP. In addition, she is recognized on the inaugural Best Lawyers: Ones to Watch list by The Best Lawyers in America©.

She received the Daniel J. Fern Award from Suffolk University Law School for graduating first in her class. She also received an Academic Leadership Scholarship, the Best Brief Award in Legal Practice Skills, and Jurisprudence Awards in numerous areas of law.

Elisabeth is a member of the Tau Beta Pi National Engineering Honor Society. She was also a recipient of the Lucent Technologies Bell Laboratories Graduate Research Fellowship.

Elisabeth is a classically trained soprano and minored in Music Performance in both college and graduate school. She was an MIT Concerto Competition winner and a four-year recipient of the Emerson Advanced Music Performance Fellowship at MIT. She has been a member of many choral groups, including the Princeton Katzenjammers and the Tanglewood Festival Chorus of the Boston Symphony Orchestra.

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Elisabeth Hunt represents clients primarily in post-grant contested matters before the Patent and Trial Appeal Board (PTAB) as lead counsel in inter partes review (IPR), post-grant review (PGR) and patent reexamination proceedings. Elisabeth is also experienced in US and foreign patent prosecution, and counsels clients in developing IP portfolio strategies that complement and enhance their business objectives, and is experienced in providing studies and opinions including IP due diligence, freedom-to-operate, competitive landscape, patentability and infringement studies, as well as litigation support.

Elisabeth’s technical experience spans a wide range of electrical and computer technologies, including speech technology, language understanding, machine learning, 3D printing, media technology, accessibility technology, social networking, gaming, financial transactions, data storage and recovery, signal processing, software and electronics.

Elisabeth's PhD research at MIT's Speech Communication Lab involved acoustic analysis for improved lexical access and speech recognition models. During graduate school, Elisabeth was a teaching assistant for signal processing and an editor for American Journal Experts. Elisabeth also held previous research positions at Lucent Technologies on indium phosphide heterojunction bipolar transistors for lightwave and wireless applications, at Princeton University on thin-film liquid dip-coating for macroelectronics fabrication and at International Solar Electric Technology on copper indium gallium selenide photovoltaics.



  • Lead counsel for our client RPX, a leading provider of patent risk solutions, in three IPRs challenging a patent asserted a by non-practicing entity against 29 large technology companies. Exposed a defect in patent’s priority claim and developed a corresponding invalidity ground resulting in dismissal of all lawsuits and disclaimer of the patent. (IPR2017-00208, IPR2017-00209, IPR2017-00212)
  • As lead counsel for our client Formlabs, a 3D printing technology developer and manufacturer, filed IPR challenging competitor's patent asserted against our client in litigation, and successfully invalidated all challenged claims. (IPR2017-01258)
  • For our client RPX, obtained final written decisions canceling all challenged claims in three IPRs against two patents asserted by a non-practicing entity, and obtained the first-ever sanction of attorneys’ fees awarded by the PTAB against a party. Sanctions were imposed for a protective order violation. (IPR2015-01750, IPR2015-01751, IPR2015-01752)
  • Prepared patent owner’s responses for our client EMC in multiple IPRs filed by defendant in infringement litigation, exposing deficiencies resulting in denial of the IPRs.
  • Represented patent owner Nuance Communications, Inc. in multiple ex parte reexamination proceedings resolved with all original patent claims confirmed. (e.g., 90/013,878; 90/011,126)
  • Prepared and prosecuted patent applications in many diverse fields, such as natural language understanding, automatic speech recognition, speech synthesis, healthcare automation, artificial intelligence and machine learning, knowledge representation, social networking, media technology, financial transactions, accessibility technology, casino gaming, data storage and recovery, networking and communications, security, signal processing, image processing, software and microprocessor design.
  • Advised clients in assessing technological development initiatives and developing strategies for focused patent protection. Developed strategies and value assessments for pursuing international patent protection for software and business-related innovations in light of widely differing legal treatment in various countries around the world.
  • Identified and exercised opportunities for client to mine previously purchased portfolio of patent applications for early-priority claims covering newly marketable technologies.
  • Conducted prior art searches and analyses for freedom to operate and patentability.
  • Conducted infringement analyses and provided litigation support for patent owners defending their technology against encroachment by competitors. Provided in-depth technical analyses of plaintiff’s patents and infringer’s products used in identifying the best patents to assert.

Elisabeth has been named a Rising Star by Super Lawyers, as well as a Rising Star by Managing IP. In addition, she is recognized on the inaugural Best Lawyers: Ones to Watch list by The Best Lawyers in America©.

She received the Daniel J. Fern Award from Suffolk University Law School for graduating first in her class. She also received an Academic Leadership Scholarship, the Best Brief Award in Legal Practice Skills, and Jurisprudence Awards in numerous areas of law.

Elisabeth is a member of the Tau Beta Pi National Engineering Honor Society. She was also a recipient of the Lucent Technologies Bell Laboratories Graduate Research Fellowship.

Elisabeth is a classically trained soprano and minored in Music Performance in both college and graduate school. She was an MIT Concerto Competition winner and a four-year recipient of the Emerson Advanced Music Performance Fellowship at MIT. She has been a member of many choral groups, including the Princeton Katzenjammers and the Tanglewood Festival Chorus of the Boston Symphony Orchestra.