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Barbara Caulfield, Michael Malecek, Peter Root, Stephen Holmes

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Dewey & LeBoeuf said last week that Barbara Caulfield, Michael Malecek, and Peter Root are joining the firm as partners, and that Stephen Holmes is joining as counsel in the firm’s Silicon Valley office.
 
The team comes to Dewey & LeBoeuf from Affymetrix. They will focus on intellectual property and technology litigation with an emphasis on life sciences, and will provide corporate advice on IP strategy.
 
Over the past five years at Affymetrix, the team represented the company in several patent infringement cases in the US District Courts in Delaware, California, and New York.
 
Prior to joining the firm, Caulfield served as executive vice president and general counsel at Affymetrix. She also served as United States District Judge for the Northern District of California from 1991 to 1994. She will serve as co-chair of Dewey & LeBoeuf's intellectual property litigation group and managing partner of the Silicon Valley office.
 
Malecek most recently held the position of chief advocacy counsel at Affymetrix. He also served as assistant US attorney in the Eastern and Northern Districts of California, in the Computer Hacking and Intellectual Property Section. Prior to this, Malecek was a litigator at Latham & Watkins.
 
Root served as associate general counsel at Affymetrix, and has also served as the company's chief compliance officer. Prior to this, he was a partner in the litigation department at Orrick, Herrington & Sutcliffe, where he focused on securities litigation and complex business and commercial litigation.
 
Holmes served as assistant general counsel and was a member of the in-house litigation team at Affymetrix. Prior to that, Holmes litigated cases involving patents, trade secrets, trademarks, copyrights and antitrust issues, both in the US and UK, where he is also admitted to practice law.

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