Andrew C. Chien

New York,  NY  U.S.A.
Phone212 504 6535

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Experience & Credentials

Practice Areas

  • IP Due Diligence
  • ITC Litigation
  • Intellectual Property
  • Trademark & Copyright Protection
  • Litigation
  • Patent & Trade Secret Litigation
  • Patent Preparation & Prosecution
University Rutgers University, Ernest Mario School of Pharmacy, B.S., with honors, 2000
Law SchoolSeton Hall University, School of Law, J.D., magna cum laude, 2003
Admitted2003, New Jersey; 2004, New York; U.S. District Court, Eastern District of New York; U.S. District Court, Southern District of New York; U.S. Patent and Trademark Office

Andrew Chien's practice is focused in the area of intellectual property law, including litigation in the pharmaceuticals and medical devices fields, as well as client counseling, legal opinions, patent prosecution and transactions.

Andrew has experience in all aspects of litigation, including motion practice, expert preparation and all aspects of discovery practice. He has litigated in U.S. Federal Courts and in international arbitrations conducted under the WIPO rules. In addition to litigation, Andrew has experience with intellectual property issues surrounding mergers, acquisitions, and other transactions. For example, he assisted elan in selling its interest in TYSABRI to Biogen Idec; Pfizer in intellectual property matters related to its acquisition of Wyeth; and Angiodynamic's acquisition of Navilyst Medical.

In addition, Andrew has experience preparing and analyzing freedom-to-operate, validity and non-infringement opinions, as well as counseling a variety of international clients regarding patent procurement strategy and portfolio management in order to optimize patent protection.

Andrew received his J.D., magna cum laude, from Seton Hall University School of Law, where he was an editor of the Seton Hall Law Review, and a B.S. in Pharmacy, with honors, from the Rutgers University College of Pharmacy. Prior to joining Cadwalader, Andrew was an associate at Morgan & Finnegan in New York and Landman Corsi Ballaine & Ford in Newark, N.J.

He is admitted to practice in the States and Federal Courts of New York and New Jersey, as well as in the U.S. Patent and Trademark Office.


•Hon. James J. Petrella
New Jersey Supreme Court


Representative intellectual property procurements and transactions:
•Acorda Therapeutics, Inc. in its pending acquisition of Civitas Therapeutics, Inc.
•Medinol Ltd., BIOrest Ltd. and Oscillon Ltd. in patent procurement and patent challenges.
•elan's sale of its interest in TYSABRI, a treatment for multiple sclerosis, to Biogen Idec.
•AngioDynamics, Inc.'s acquisition of Navilyst Medical.
•Pfizer, Inc.'s acquisition of Wyeth.
•JP Morgan in the securitization of intellectual property of various pledgors.

Pro bono intellectual property matters:
•Doors Wide Open's trademark related to information on handicap accessible places.
•The Real News Project's trademarks related to disseminating news information.

News & Resources


News Releases

Cadwalader Advises Acorda Therapeutics on Merger Agreement to Acquire Civitas Therapeutics

Sep 24, 2014


Clients & Friends Memos

New Decision Increases Calculation of Patent Term

Jan 16, 2014


Congressional Breakthrough On Patent Reform Likely This Fall

Sep 14, 2011

Profile Visibility
#92 in weekly profile views out of 101,562 lawyers in New York, New York
#989 in weekly profile views out of 1,726,728 total lawyers Overall

Office Information

Andrew C. Chien

New YorkNY 10281-0006


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