
Irell & Manella LLP’s Los Angeles-based team maintains a strong reputation for successfully handling competitor versus competitor patent trials in the federal courts and PTAB. The team’s diverse roster of clients ranges from individual inventors to major tech and biotech companies. Seasoned trial attorney Morgan Chu chairs the practice, contributing his extensive experience in precedent-setting patent litigation cases. Jason Sheasby is very active in high-tech patent infringement cases, having recently secured victories for his clients G+ Communications and Netlist. Benjamin Hattenbach’s practice focused on pre-litigation counselling and patent infringement trials. Lisa Glasser is a valuable addition to the team, as she is knowledgeable in a wide range of high tech and life sciences issues. In Newport Beach, Stephen Payne is a skilled attorney who can handle cases in federal courts, appeal courts, and the patent office. Tony Rowles, also based in Newport Beach, specializes in patent litigation related to high-tech and manufacturing industries.
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Key clients
- Netlist
- G+ Communications
- Xockets
- Skechers
- Future Link
- IPValue Management
- Celerity IP
- Foresight Diagnostics
- StreamScale
Work highlights
- Secured back-to-back victories for Netlist in two separate cases (patent infringement and breach of contract) for important innovations in memory module technology.
- Represented G+ Communications in a patent infringement trial in the Eastern District of Texas against Samsung. At the damages re-trial, the jury awarded $142 million, the full amount requested.
- Scored a $240 million verdict for StreamScale in a patent infringement suit against Cloudera, which involved technology used to efficiently store data. After a four-day trial, the jury found that Cloudera infringed all of the asserted claims and also found Cloudera did not prove that any of the claims were invalid. The case was significant not only for the verdict size, but because StreamScale’s technology underpins modern cloud data storage.
Lawyers
Hall of fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Practice head
Morgan Chu; Jason Sheasby; Lisa Glasser; Ben Hattenbach
Other key lawyers
Stephen Payne; Tony Rowles