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  • Merck KGaA: Prevailed in the U.S. Supreme Court when a unanimous opinion vindicated the right under the patent statute to conduct pre-clinical cancer research, undertaken to provide data for FDA approval of clinical trials of new drugs, without fear of patent infringement.
  • Visa U.S.A. Inc.: Convinced the U.S. Court of Appeals for the Second Circuit to affirm a settlement with a nationwide class of four million retailers with claims of over $100 billion.
  • Powerine Oil: Earned a victory for insurance policyholders in the California Supreme Court's 2005 "Powerine II" decision, which held that the standard excess policies at issue provide coverage for environmental clean-up costs ordered by the government.
  • Republic of the Philippines: Persuaded the Ninth Circuit to dismiss the Republic of Philippines from an interpleader action brought by Merrill Lynch in connection with litigation involving assets secreted from the federal government by Ferdinand Marcos while he was President of the Philippines.
  • Genentech: Convinced the Federal Circuit to overturn a summary judgment ruling against our client in a patent infringement litigation against Amgen.
  • Public Policy Engagements: Successfully challenged the Solomon Amendment in the Third Circuit; defended the McCain-Feingold campaign finance reform law in the U.S. Supreme Court, and thereafter convinced the D.C. Circuit to strike down many Federal Election Commission regulations that failed to implement the reform legislation as Congress had intended; on behalf of amici curiae, filed the only brief that offered the Supreme Court the grounds on which its 8-1 decision in City of Sherrill v. Oneida Indian Nation of New York Oneida rests.
Engagements Attorneys Contacts

E. Joshua Rosenkranz


+1 (212) 847-8748

Leonard Feldman

+1 (206) 389-6124