Katya Ascher focuses her practice on patent law issues in litigation and transactional matters across technology sectors. She regularly negotiates every type of agreement associated with technology transfer, research and development, manufacturing and distribution. She has over a decade of experience counseling clients in the United States, France, and the United Kingdom. Her clients include mid-sized companies and start-ups, operating in the biotechnology, pharmaceutical, medical device, and engineering fields.

Katya Ascher spent the first five years of her career as an associate in one of the top New York intellectual property boutiques where she litigated cases in district court and the International Trade Commission and advised clients on patent validity and infringement. She subsequently worked as the intellectual property counsel in a French research foundation and as a solicitor in London. Before studying law, Katya gained technical experience as an intern in a genomic research laboratory of a major biotechnology company.


  • Advised Ardian Growth and BNP Paribas Development on their investment into Proteor, a manufacturer and distributor of prosthetics and orthotics
  • Advised Vetoquinol on the intellectual property aspects of an acquisition of the European and UK rights to the Profender and Drontal product families from Elanco for a total price of $140 million
  • Advised Igyxos in negotiating a service agreement with Selexis to develop Igyxos first in class monoclonal drug candidate for the treatment of human infertility

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University of Paris II Panthéon-Assas, Master 2 Industrial Property, 2012
University of North Carolina School of Law, JD, with honors, 2005
University of North Carolina at Chapel Hill, BA, Biology, with distinction, 2002

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Katya Ascher

Insights & Events / Media

Webinar / McDermott Event / April 27 - June 8, 2021

Webinar / Speaking Engagements / March 31, 2021

Special Report / February 2021