DLA Piper LLP (US) is home to a robust patent litigation practice, representing patent owners in high-stakes infringement suits, ITC investigations, IPR proceedings and CBM reviews across federal courts and administrative tribunals. The group is particularly active in the technology sector and counts the likes of Sony and LG Electronics among its clients. The firm is highly regarded for its deep bench of jury trial lawyers and high post-trial success rate. Sean Cunningham, a Washington DC-based IP litigator praised for his ‘meticulous attention to detail’ co-chairs the group. Gina Durham, a deputy group leader operating out of San Francisco, is an esteemed litigation strategist. Vice chair Kathryn Riley Grasso is a go-to counsel for medical device and technology companies, with extensive first-chair trial experience. Co-chair Matthew Satchwell is a Chicago-based first-chair attorney with strong credentials before the PTAB. Recently the team has welcomed Shaobin Zhu, operating out of Seattle. Ferlillia Roberson has left the firm.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Billing & efficiency

Testimonials

Collated independently by Legal 500 research team.

  • ‘The DLA team is strong from top to bottom in technology, procedure, and trial savvy. They are incredibly efficient, continuously coming in below estimates, which is greatly appreciated. They are incredibly responsive and willing to understand the nature of our business and business needs versus focusing on just the matter they have in front of them. ’

  • ‘Dan Valencia: Incredibly responsive and a team player. Anticipates likely problems and provides potential solutions quickly.'

  • 'Helena Kiepura: Very detail oriented and very strong on procedure. One of the best attorneys I have worked with in preparing a witness for a difficult deposition. Will put the time in and make sure nothing will slip through the cracks. ’

  • ‘The combination of Mark Fowler and Sean Cunningham was highly impressive. Mark's open-minded approach to listening to the opinions of all attorneys, combined with Sean's meticulous attention to detail in supporting Mark, led to excellent outcomes. Meetings with them always exuded a positive atmosphere.’

  • ‘DLA's patent litigation practice offers in-depth Knowledge and a wealth of experience specialized in patent litigation. They are able to identify the key issues in a case quickly and offer strategies to address them.’

  • ‘Erin Gibson and Sean Cunningham lead trial teams with professionalism, efficiency, and respect for the client and their team.’

Key clients

  • Lenovo
  • Toyota Motor Corporation
  • LG Electronics
  • ResMed, Inc.
  • Mazda Motor Corporation
  • Panasonic Corporation
  • Sony Interactive Entertainment
  • One World Technologies, Inc.
  • Neurelis, Inc.

Work highlights

Represented Guardant Health, a leading cancer diagnostics company, in patent infringement litigation involving high-throughput DNA sequencing technology.
Represented HP Inc. and Lenovo in an ITC investigation involving Wi-Fi chipset patents asserted by International Semiconductor Group.
Represented Toyota and its subsidiaries in a complex six-patent MDL case against patent assertion entity Neo Wireless involving Standards Essential Patents for wireless technology.
Practice head

Sean Cunningham; Gina Durham; Kathryn Riley Grasso; Matthew Satchwell

Other key lawyers

Shaobin Zhu; Dan Valencia; Helena Kiepura; Mark Fowler; Erin Gibson