Andrea Weiss Jeffries


Jeffries, Andrea Weiss

Andrea Weiss Jeffries is a partner in the Litigation/Controversy Department, and a member of the Intellectual Property Litigation Practice Group. She joined the firm in 2011.


Ms. Jeffries’ practice focuses on patent litigation. She has represented clients in a range of cases involving diverse technologies, including computer memory, multi-threaded software, database technology, pharmaceutical formulations, medical devices and wireless communications. She has litigated patent cases in various jurisdictions across the nation. Additionally, Ms. Jeffries has worked on numerous technology-related civil litigation matters in various other substantive legal areas.


Before joining WilmerHale, Ms. Jeffries was a litigation partner in the law firm of Munger, Tolles & Olson LLP from 2002-2011. While there, she was a lead attorney for numerous patent litigation matters, and helped create and lead the firm’s Patent Litigation Practice Group. As an associate at Munger, Tolles from 1995-2001, Ms. Jeffries worked on various civil litigation matters. For a three month period in 2001, Ms. Jeffries served as a pro bono deputy city attorney and tried several cases to verdict.

After law school, Ms. Jeffries served as a law clerk for the Honorable Harry L. Hupp of the United States District Court for the Central District of California.

Honors & Awards

  • Recognized as one of California's 2013 "Women Leaders in Tech Law" by The Recorder
  • Named a 2013 and 2014 "Southern California Super Lawyer" for her intellectual property litigation practice
  • Named to the Daily Journal’s 2010, 2012 and 2013 lists of California's "Top Women Lawyers"
  • Selected as one of the "Most Powerful & Influential Women" of California in 2012 by the National Diversity Council
  • Recognized as a "Future Star" in the 2012 and 2013 editions of Benchmark Litigation
  • Listed in the 2010 Daily Journal as one of 100 "Top Women Litigators" in California
  • Named a "California Super Lawyers’ Rising Star" from 2005 to 2008

Publications & News


February 12, 2015

Opinion may stir up more trademark tacking litigation

An article by Andrea Jeffries and Tiffany Tejeda-Rodriguez published in the February 12, 2015 edition of the Daily Journal.

February 4, 2015

Dish Hopper Case: A Narrow Reading Of Aereo

An article by Andrea Weiss Jeffries and Elaine Zhong published in the February 4, 2015 edition of Law360.

May 13, 2014

Success at the Federal Circuit: WilmerHale Earns Five Victories in One Week

WilmerHale has just completed an extremely successful week at the Federal Circuit, receiving favorable decisions in five out of six patent cases concerning various legal issues.

October 21, 2013

Andrea Weiss Jeffries Named to The Recorder’s “Women Leaders in Tech Law” List

The Recorder has selected Partner Andrea Weiss Jeffries to its 2013 list of California’s “Women Leaders in Tech Law,” an annual list that honors 50 authoritative women who have contributed to the practice, business and advancement of legal issues throughout the previous year.

May 8, 2013

Andrea Weiss Jeffries Named to Daily Journal’s “Top Women Lawyers” List

May 3, 2013

Daily Journal Publishes "Opinions of Counsel in Patent Cases" by Andrea Weiss Jeffries and Christopher Gribble

An article by Partner Andrea Weiss Jeffries and Associate Christopher Gribble, published in the May 3, 2012 edition of the Daily Journal.

March 15, 2013

Partner Catherine Carroll Speaks at USC Gould School of Law’s 2013 Intellectual Property Institute

Catherine Carroll, partner in the Litigation/Controversy Department, served on a debate panel at the highly renowned Intellectual Property (IP) Institute hosted by the University of Southern California Gould School of Law on March 14 in Beverly Hills.

September 1, 2012

Patent Litigation 2012: Expert Direct/Cross Examination

A chapter co-authored by Andrea Weiss Jeffries, published in the Practising Law Institute Intellectual Property Course Handbook Series.

May 14, 2012

Daily Journal Names Andrea Weiss Jeffries Among “Top 100 Women Lawyers”

January 11, 2012

National Diversity Council Names Andrea Jeffries Among Most Powerful and Influential Women of California

Recent Highlights

  • Represented a software manufacturer accused of infringing a patent in the Central District of California in obtaining a favorable claim construction ruling and summary judgment ruling.
  • Represented technology companies in the Central District of California against allegations that certain online systems infringe a patent for web-enabled database management system; matter now stayed pending reexamination proceedings.
  • Represented Radio Frequency Identification (RFID) tag manufacturer against accusations of infringing 14 patents relating to various aspects of RFID tags in the District of North Dakota in obtaining favorable claim construction and summary judgment rulings or dismissal of 13 of the 14 patents, with the final patent currently in reexamination proceedings.
  • Represented pharmaceutical company accused of infringing two patents in the District of Delaware through trial and on appeal, ultimately prevailing in the Federal Circuit, which affirmed the District Court’s grant of judgment as a matter of law.
  • Represented pharmaceutical company accused of infringing three patents relating to various aspects of an immunoassay analyzer in the District of Delaware in obtaining a favorable settlement just prior to trial.

Professional Activities

Ms. Jeffries is a member of the Los Angeles County and Federal Circuit Bar Associations. She has also been a member of the University of Southern California Intellectual Property Institute’s planning committee since 2005, and is currently a member of the Patent Damages & Remedies Working Group Committee of the Sedona Conference.


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JD, Stanford Law School, 1994, Associate Editor, Stanford Law Review; Hilmer Oehlmann, Jr. Writing Award Recipient

AB, Chemistry, magna cum laude, Duke University, 1991, Phi Beta Kappa

Bar Admissions



The Hon. Harry L. Hupp, US District Court for the Central District of California, 1994 - 1995