Edmund J. Walsh

Edmund J. Walsh

Shareholder | Electrical & Computer Technologies
617.646.8212 Edmund.Walsh@WolfGreenfield.com LinkedIn Profile


  • BS, Electrical Engineering, Boston University
  • MS, Electrical Engineering, Stanford University
  • JD, Suffolk University Law School

Key Technologies

  • Interconnection Technology
  • Semiconductor Processing
  • Software
  • Wireless Communication
  • Signal Processing

Practice Groups

Admitted to Practice

  • Massachusetts
  • US Patent and Trademark Office


  • Boston


Ed Walsh has extensive experience in intellectual property strategy development and execution. He has guided clients through all types of IP issues, such as patent portfolio development, licensing and other transactions, ensuring freedom to operate, and dispute resolution, including representing both patent owners and petitioners before the Patent Trial and Appeal Board (PTAB) and in reexamination proceedings. His areas of technical proficiency include optical and electronic interconnection technology, semiconductor processing, software, wireless communication, and signal processing.

Ed served over 14 years as in-house counsel for technology companies, including Chief Intellectual Property Counsel for Teradyne, a world leader in semiconductor processing equipment. Prior to entering law school, Ed worked as an electrical engineer, managing a team developing vehicle diagnostic equipment and as a researcher at the National Cancer Institute.

Client Testimonial

Ed knows the business and knows the players, and that’s invaluable.


  • Guided a Fortune 500 client in a multi-pronged strategy to deal with an opportunistic foreign competitor, involving litigation in multiple forums in multiple countries. 
  • Advised clients for hundreds of products under development on freedom to operate and design-arounds to avoid competitive patents.
  • Advised multiple clients negotiating licenses for standard essential patents.
  • Advised multiple clients on patent portfolio development for commercial advantage.
  • Lead counsel in first of its kind successful defense of a patent challenged in inter partes review accepting commercial success of the invention as proof of patentability.
  • Defeated institution of inter partes review to five patents being asserted, setting up a jury verdict by a Wolf Greenfield litigation team.
  • Won a decision in an inter partes reexamination, invalidating all claims to an internet ordering patent, ending a suit against our client.
  • Invalidated in an inter partes reexamination all claims to a patent asserted against our client, turning the tables on the patent owner who was left facing a breach of contract claim. 
  • Persuaded examiners in an ex parte reexamination of patent underlying one of the largest patent verdicts ever to reverse course and confirm all claims as patentable, preserving a significant damage award for our client.
  • Represented a publicly traded client in IP diligence associated with acquisition of a competitor, in a transaction valued in ten figures.
  • Lead counsel in sale by our client of software product line in a transaction valued in eight figures.
  • Conducted due diligence in support of an investment in a company improving FLASH memories through application of signal processing techniques. 
  • Developed a position to prove a client was entitled to participate in a patent pool associated with a significant wireless communication standard.
  • Designed licensing and patent portfolio program resulting in leading technology client's use of competitors to sell its product to gain market acceptance while retaining benefits of technology investment.
  • Guided client in responding to demand for nine figure payment from patentee holding over 100 patents relating to wireless technology, evaluated whether portfolio represented threat or opportunity, and negotiated satisfactory resolution with patent holder.


  • American Bar Association
  • Boston Intellectual Property Law Association - Co-chair, Computer Law Committee
  • Institute of Electrical and Electronics Engineers
  • MIT $100K - Mentor
  • University of Massachusetts Amherst - Guest Lecturer at the Isenberg School of Management; Technology Innovation Challenge, judge
  • Intellectual Property Owners Association - Corporate IP Management Committee


  • Repeatedly named to The Best Lawyers in America® for IP Law
  • Repeatedly named to the Massachusetts Super Lawyers list
  • Ranked among the top 3% of most active and best performing high-tech patent prosecutors—out of 28,843 patent attorneys and agents—in Patexia’s Patent Prosecution Intelligence Report 
  • National Science Foundation Fellow


Recent News

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Ed was an Adjunct Professor and Lecturer in electrical engineering at Boston University. He has been active in local politics in the town of Northborough, is a member of the Sudbury Valley Trustees, is a trustee at First Parish Church, and is an avid lacrosse fan.