Ms Katherine Helm > Dechert LLP > New York, United States > Lawyer Profile

Dechert LLP
Three Bryant Park, 1095 Avenue of the Americas
NEW YORK, NY 10036-6797
United States
Katherine Helm photo

Work Department

Intellectual Property




Dr. Katherine A. (“Kassie”) Helm, Ph.D., represents clients in patent litigation and related intellectual property, antitrust, healthcare and international arbitration matters. Dr. Helm’s neuroscience background offers a unique perspective to innovator pharmaceutical, biotechnology and healthcare companies in all aspects of litigation, from pre-suit diligence through trial, appeal and full trials on remand.  She has represented life sciences companies in patent infringement, declaratory judgment, preliminary injunction and Hatch-Waxman actions, involving small and large molecules, as well as in pay-for-delay antitrust litigation, and in a variety of both federal and state complex commercial litigation and international arbitrations, involving joint ventures, licensing and drug development agreements.  Dr. Helm also has significant experience with concurrent Patent Office proceedings and global litigation including Inter Partes Reviews (IPRs), Post Grant Reviews (PGRs), Interferences and appeals, European Patent Office (EPO) Oppositions and appeals, as well as UK, French and other European patent revocation and infringement actions.


  • Princeton University, A.B., 1999, cum laude, Sigma Xi
  • Johns Hopkins University, M.A., 2001
  • Johns Hopkins University, Ph.D., 2003, Full Scholarship, the Natural Sciences and Engineering Council of Canada
  • Fordham University School of Law, J.D., 2008, cum laude, Dean’s List, Parchomovsky-Siegelman Student Graduation Prize, Helen and Norman Burg Graduate Student Ethics Prize, Senior Articles Editor, Fordham Intellectual Property, Media & Entertainment Law Journal

Lawyer Rankings

United States > Industry focus > Healthcare: life sciences

(Next Generation Partners)

Katherine HelmDechert LLP

With experience advising life sciences clients of all sizes, Dechert LLP acts on a mix of transactions, litigation and corporate financings. Its corporate arm has acted on numerous IPOs for clinical-stage biopharma teams, as well as follow on and early funding rounds. Other corporate work includes M&A, monetization agreements, and business immigration. Disputes are a key part of the team’s workload, advising on product liability cases, antitrust disputes, and IP litigation, with an emphasis on small molecules cases. The team is co-led by Boston-based IP advisor Andrea Reid and New York-based David S Rosenthal, who advises on financings. New York-based Katherine Helm is a key name for patent litigation. Boston-based Brenda Sharton is also noteworthy for her advice to Moderna on EU data privacy breaches.

United States > Intellectual property > Patents: litigation (full coverage)

Dechert LLP‘s practice garners praise for being ‘technically sophisticated, smart, transparent, and ethical’. The group headed by Philadelphia’s Martin J Black , which is able to ‘identify strengths and weaknesses as cases mature’, regularly acting on the plaintiff’s side, has a particular strength in the life sciences sector with a dedicated Hatch-Waxman litigation team. The New York-based Katherine Helm has a focus on pharmaceutical and biotech patent litigation. In 2021 Howard Levine and Jennifer Swan joined from Finnegan, Henderson, Farabow, Garrett & Dunner LLP. Silicon Valley’s Nisha Patel left the firm for an in-house position.