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Weil, Gotshal & Manges LLP

Work +1 212 310 8000
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Elizabeth Weiswasser

Work +1 212 310 8022
Weil, Gotshal & Manges LLP


Widely recognized as a practice and thought leader in the field of life sciences patent litigation and counseling based on nearly twenty-five years of dedication to the field. Known for her ability to marry deep scientific and patent law expertise and for achieving excellent results for biotech, pharmaceutical, medical device and other consumer product companies in the area of patent litigation and counseling, as well as supporting key corporate transactions in the life sciences industry. Former law clerk to Judge Lourie, U.S. Court of Appeals for the Federal Circuit. Licensed to practice before the Patent and Trademark Office.

United States: Industry focus

Healthcare: life sciences

Within: Healthcare: life sciences

The ‘thorough’ and ‘strong’ group at Weil, Gotshal & Manges LLP advises on the full gamut of corporate and litigation matters for clients in the life sciences arena, including antitrust and IP issues. Silicon Valley-based co-head Edward Reines successfully represented Stanford University in an appeal arising from an inventorship dispute with the Chinese University of Hong Kong regarding a revolutionary test for Down’s syndrome. ‘Extremely organized’ patent litigation partner Elizabeth Weiswasser, who has a ‘solid understanding of scientific issues’, has been representing Acorda Therapeutics in the company’s appeal to the Federal Circuit regarding a patent infringement judgment involving its Ampyra drug. IP partner Jeffrey Osterman and private equity partner Christopher Machera led advice to National Surgical Hospitals on its $760m acquisition by Surgery Partners. The group is also headed by Michael Epstein. Named partners are based in New York unless otherwise stated.

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United States: Intellectual property

Patent litigation: full coverage

Within: Patent litigation: full coverage

Weil, Gotshal & Manges LLP’s ‘superbly capable’ team is particulary adept at representing clients from the technology, chemical and life sciences sectors. In Silicon Valley, Edward Reines secured a rare preliminary injunction for Illumina against competitor Qiagen regarding the sale of a DNA sequencer and he also assisted Stanford University with a high-profile inventorship appeal against the Chinese University of Hongkong regarding a test for Down’s Syndrome. In other work, Washington DC-based co-practice head Brian Ferguson and New York’s Anish Desai represented BASF in three IPRs filed by Johnson Matthey regarding patents on diesel exhaust filters. Clients also include General Electric, Oracle and Pacific Biosciences. Silicon Valley’s Anne Cappella, Elizabeth Weiswasser in New York and Houston’s Garland Stephens are key contacts. Derek Walter in Silicon Valley made counsel.

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