
Intellectual Property
USA Guide 2026 : Massachusetts
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by WilmerHale
IP Litigation
To learn more, visit: https://www.wilmerhale.com/en/solutions/intellectual-property-litigation
IP
Clients depend on us to understand how intellectual property relates to their business, and to use that knowledge to help them fully realize the value of their intellectual property. We offer full-service IP coverage across industries, from technology, telecommunications, retail and media to pharmaceuticals and medical devices. Clients come to WilmerHale for counseling on patent drafting and prosecution; post-grant proceedings; trademark, copyright and trade secret protection; and strategic IP portfolio development.
To learn more, visit: https://www.wilmerhale.com/en/solutions/intellectual-property-counseling-and-prosecution
Chambers Review
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Work Highlights
Provided by Chambers
WilmerHale secured a landmark global settlement for GSK in a high-stakes patent infringement dispute against Pfizer.
Strengths
Provided by Chambers
The team are strategy-driven, but also very detail-oriented.
Intellectual Property respondentUSAThe team at WilmerHale is of the highest caliber. They are extremely knowledgeable about all areas of IP and trademarks.
Intellectual Property respondentUSAWilmerHale are top notch: great litigators, strategic and thoughtful, and they communicate well with others in the company.
Intellectual Property respondentUSAThere is no firm I trust more than WilmerHale for IP litigation, strategy, and counseling. The work product is always flawless.
Intellectual Property respondentUSAThe team at WilmerHale have outstanding real trial experience and first-chair trial lawyers.
Intellectual Property respondentUSA
Notable Practitioners
Provided by Chambers
Senior Statespeople 
Senior Statespeople 
William F Lee
William Lee is a preeminent IP litigator with an impressive track record of success representing leading life sciences and technology companies in high value patent trials.
William always delivers the best service of the highest quality.
Intellectual Property respondentUSAWilliam is the ultimate senior statesman.
Intellectual Property respondentUSA
Band 1 
Band 1 
Joseph Mueller
Joseph Mueller often works on IP litigation and regularly counsels technology companies. He has notable experience handling matters both at trial and at appeal. Joe is unparalleled as a trial lawyer. He is very creative, high energy, and extremely likeable.
Intellectual Property respondentUSAHe is one of the best first-chair trial lawyers in patent litigation.
Intellectual Property respondentUSAHe is a truly preeminent lawyer in patent litigation.
Intellectual Property respondentUSA
Band 2 
Band 2 
Lisa J Pirozzolo
Lisa Pirozzolo is recommended for her counsel in patent infringement and licensing disputes. She frequently represents prominent life sciences and technology companies.
Lisa is willing to dig into work on tight timelines and to get us what we need as a client.
Intellectual Property respondentUSALisa is an incredibly consistent and steady hand.
Intellectual Property respondentUSA
Band 3 
Band 3 
Emily Whelan
Emily Whelan chairs the firm's IP group and is regularly called on by life sciences companies for both contentious and non-contentious mandates, including both portfolio management and litigation. Emily is the first person I call when I need help with a thorny issue or an important project.
Intellectual Property respondentUSAEmily has a deep knowledge of patent litigation strategy.
Intellectual Property respondentUSA
Band 4 
Band 4 
Cynthia D Vreeland
Cynthia Vreeland is a respected patent litigator with notable experience in high-stakes infringement trials, especially for technology clients. Cynthia is great at leading a team. She is very thorough, careful and meticulous.
Intellectual Property respondentUSA
Band 4 
Band 4 
Michael J Summersgill
Michael Summersgill is a distinguished litigator with a notable track record of success in high stakes IP trials.
Michael out-strategizes the other side and is terrific on his feet and in the court.
Intellectual Property respondentUSA
Band 5 
Band 5 
Kevin Prussia
Kevin Prussia has significant experience in intellectual property litigation. He represents clients in front of the ITC, Patent Trial and Appeal Board and Massachusetts Supreme Court.
Ranked Individuals at WilmerHale (7)
Members
Provided by WilmerHale

Cynthia D Vreeland
View profile of Cynthia D Vreeland
Joseph Mueller
View profile of Joseph Mueller
William F Lee
View profile of William F Lee
Lisa J Pirozzolo
View profile of Lisa J Pirozzolo
Michael J Summersgill
View profile of Michael J Summersgill
Emily Whelan
View profile of Emily Whelan
Kevin Prussia
View profile of Kevin Prussia
WilmerHale has rankings in the following guides
Band 3 Global 2026
Practice area: Intellectual Property
Location: Global: Multi-Jurisdictional
View department profile for Global 2026Band 2 USA 2026
Practice area: Intellectual Property
Location: USA - Nationwide
View department profile for USA 2026Band 2
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