About

Provided by Morrison Foerster

Morrison & Foerster is an IP powerhouse, representing clients in their complex patent, copyright, trademark, trade dress, trade secret, and IP transaction matters. Clients come to us for our ability to combine market-changing IP experience with scientific and technical expertise on a global scale.

We are adept at resolving disputes short of trial, but when cases do see the inside of a courtroom, the prowess of our litigators is second to none. The size and experience of our litigation team have provided us with expertise in a variety of venues, including all of the district courts that handle high volumes of patent litigation, the U.S. International Trade Commission, and the U.S. Court of Appeals for the Federal Circuit.

Our global patent prosecution group is the largest of any general practice firm, with 65 Ph.D. in technology and life sciences. We are particularly skilled in the strategic planning of patent portfolios, including—for example—writing successful patent applications in complex and novel situations, in anticipation of possible future litigation. We work closely with clients from the earliest stages of their technical development, offering valuable advice about how to protect their inventions and new ideas in view of their business strategies.

Chambers Review

Provided by Chambers
Intellectual Property: Patent - USA
2
Band 2
What the team is known for

Morrison Foerster has a powerful patent practice with an impressive client list featuring big names in technology, biotechnology and consumer electronics. Maintains a fine reputation for its strengths in high-stakes litigation and well supported by a deep bench of seasoned trial lawyers. Also possesses significant expertise in rights strategy and prosecution work, alongside deep experience in appellate litigation in the US Supreme Court, the federal courts of appeals and state appellate courts.

Work Highlights

Provided by Morrison Foerster
  • Morrison Foerster successfully defended Spotify in a patent infringement case brought by Guvera alleging infringement of patents involving a system for generating a pool of matched content.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers
Daralyn J Durie
1
Daralyn J Durie
1
Band 1

Daralyn Durie maintains a leading practice in pharmaceutical and biosimilar patent litigation. She offers additional expertise in copyright infringement disputes.

"Daralyn is truly a rare talent: she is incredibly smart, very thoughtful, and is a really excellent oral advocate."

"Daralyn is phenomenal in the courtroom."

Ragesh K Tangri
2
Ragesh K Tangri
2
Band 2

Ragesh Tangri has wide-ranging IP expertise including trade secrets disputes and trademark matters for an array of household-name companies.

Deanne Maynard
3
Deanne Maynard
3
Band 3

Deanne Maynard cochairs the firm's appellate and Supreme Court practice. She is renowned for her track record in bet-the-company disputes and has substantial experience handling patent cases before the Federal Circuit.

"Deanne has deep experience in IP, and not only is she an amazing appellate lawyer, but she also has that ability to take complicated, difficult concepts and really hone them down to the core elements."

Janet Xiao
F
Janet Xiao
F
Foreign expert for China

Janet Xiao maintains an impressive base of life sciences industry clients whom she ably advises on all manner of non-contentious patent matters, including prosecution and portfolio strategy.

Ranked Lawyers at
Morrison Foerster

Provided by Chambers
Filter by
Band

USA

Intellectual Property

Janet Xiao
F
Janet Xiao
F
Foreign expert for China
Intellectual Property: Patent

Daralyn J Durie
1
Daralyn J Durie
1
Band 1
Deanne Maynard
3
Deanne Maynard
3
Band 3
Intellectual Property: Trademark, Copyright & Trade Secrets

Ragesh K Tangri
2
Ragesh K Tangri
2
Band 2

Members

Provided by Morrison Foerster