Elisabeth Hunt co-chairs Wolf Greenfield's Post-Grant Proceedings Practice, which has been ranked in the top five percent of law firms for best performance before the Patent and Trial Appeal Board (PTAB) for the fifth consecutive year in Patexia's IPR Intelligence Report. Elisabeth has been recognized by the PTAB Bar Association among the Top 50 Women in PTAB Trials, and has represented patent challengers and patentees in over 50 proceedings before the PTAB. Elisabeth regularly serves as lead counsel for sophisticated technology companies 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.

Client testimonial:
"Wolf Greenfield’s Post-Grant Proceedings Practice features a team that’s unparalleled in its ability to pick apart technically complex cases to plot a path to success. The team quickly distills cases down to key technical issues to develop and present winning arguments. Moreover, working with Rich and Elisabeth in particular is a pleasure: they are highly responsive, engaging and tenacious. I highly value and trust their judgment and work product."
  • 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 IPR counsel for Google and LG, successfully invalidated all challenged claims in two patents on instant messaging technology asserted by Zipit Wireless.  (IPR2019-01567, IPR2019-01568)
  • As lead counsel for Google, filed ex parte reexamination successfully invalidating all challenged claims of patent asserted by Cypress Lake Software on mobile GUI technology, with the rejection then being affirmed by the PTAB on appeal.  (90/014,250)
  • 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 Nuance Communications, successfully defended all claims of patent on medical record technology challenged by competitor MModal in IPR, with result upheld on appeal to the Federal Circuit.  (IPR2018-01355) 
  • For our client Enleofen, Boehringer Ingelheim and patent owners Singapore Health Services and the National University of Singapore, successfully defended patent on groundbreaking fibrosis treatment, by convincing the PTAB to deny institution of PGR filed by competitor Lassen Therapeutics.  (PGR2019-00053)
  • 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 is listed among the PTAB Bar Association’s Top 50 Women in PTAB Trials. She has been repeatedly named a Rising Star by Super Lawyers, as well as a IP Star by Managing IP. In addition, Elisabeth is recognized on the 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.

Recent News & Events

October 13, 2021

Wolf Greenfield Attorneys Named to 2021 Massachusetts Super Lawyers, Rising Stars Lists

August 19, 2021

33 Wolf Greenfield Attorneys Named to The Best Lawyers in America 2022

July 27, 2021

PTAB Wary Of Google Foe's Prior Art Argument In IP Dispute

July 22, 2021

Maryanne Trevisan, Elisabeth Hunt and Tommy Franklin Named Co-Chairs

July 16, 2021

Elisabeth Hunt Quoted by Bloomberg Law on Patent Office Policies

June 15, 2021

Managing IP Ranks Wolf Greenfield Nationally, Recognizes Seven Attorneys as IP STARS in 2021

February 24, 2021 2:00 PM - 2:30 PM ET

Wolf Greenfield Webinar: Discretionary Denial at the PTAB Based on Parallel Litigation

October 13, 2020

Wolf Greenfield Attorneys Named to 2020 Massachusetts Super Lawyers, Rising Stars Lists

August 20, 2020

29 Wolf Greenfield Attorneys Named to The Best Lawyers in America 2021

March 10, 2020

Google Gets PTAB To Review 3 Messaging, Media Patents


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. 

Expand All

Elisabeth Hunt co-chairs Wolf Greenfield's Post-Grant Proceedings Practice, which has been ranked in the top five percent of law firms for best performance before the Patent and Trial Appeal Board (PTAB) for the fifth consecutive year in Patexia's IPR Intelligence Report. Elisabeth has been recognized by the PTAB Bar Association among the Top 50 Women in PTAB Trials, and has represented patent challengers and patentees in over 50 proceedings before the PTAB. Elisabeth regularly serves as lead counsel for sophisticated technology companies 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.

Client testimonial:
"Wolf Greenfield’s Post-Grant Proceedings Practice features a team that’s unparalleled in its ability to pick apart technically complex cases to plot a path to success. The team quickly distills cases down to key technical issues to develop and present winning arguments. Moreover, working with Rich and Elisabeth in particular is a pleasure: they are highly responsive, engaging and tenacious. I highly value and trust their judgment and work product."
  • 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 IPR counsel for Google and LG, successfully invalidated all challenged claims in two patents on instant messaging technology asserted by Zipit Wireless.  (IPR2019-01567, IPR2019-01568)
  • As lead counsel for Google, filed ex parte reexamination successfully invalidating all challenged claims of patent asserted by Cypress Lake Software on mobile GUI technology, with the rejection then being affirmed by the PTAB on appeal.  (90/014,250)
  • 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 Nuance Communications, successfully defended all claims of patent on medical record technology challenged by competitor MModal in IPR, with result upheld on appeal to the Federal Circuit.  (IPR2018-01355) 
  • For our client Enleofen, Boehringer Ingelheim and patent owners Singapore Health Services and the National University of Singapore, successfully defended patent on groundbreaking fibrosis treatment, by convincing the PTAB to deny institution of PGR filed by competitor Lassen Therapeutics.  (PGR2019-00053)
  • 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 is listed among the PTAB Bar Association’s Top 50 Women in PTAB Trials. She has been repeatedly named a Rising Star by Super Lawyers, as well as a IP Star by Managing IP. In addition, Elisabeth is recognized on the 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.

Recent News & Events

October 13, 2021

Wolf Greenfield Attorneys Named to 2021 Massachusetts Super Lawyers, Rising Stars Lists

August 19, 2021

33 Wolf Greenfield Attorneys Named to The Best Lawyers in America 2022

July 27, 2021

PTAB Wary Of Google Foe's Prior Art Argument In IP Dispute

July 22, 2021

Maryanne Trevisan, Elisabeth Hunt and Tommy Franklin Named Co-Chairs

July 16, 2021

Elisabeth Hunt Quoted by Bloomberg Law on Patent Office Policies

June 15, 2021

Managing IP Ranks Wolf Greenfield Nationally, Recognizes Seven Attorneys as IP STARS in 2021

February 24, 2021 2:00 PM - 2:30 PM ET

Wolf Greenfield Webinar: Discretionary Denial at the PTAB Based on Parallel Litigation

October 13, 2020

Wolf Greenfield Attorneys Named to 2020 Massachusetts Super Lawyers, Rising Stars Lists

August 20, 2020

29 Wolf Greenfield Attorneys Named to The Best Lawyers in America 2021

March 10, 2020

Google Gets PTAB To Review 3 Messaging, Media Patents


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.