A&O Shearman was formed in 2024 via the merger of two historic firms, Allen & Overy and Shearman & Sterling. With nearly 4,000 lawyers globally, we are equally fluent in English law, U.S. law and the laws of the world’s most dynamic markets.
This combination creates a new kind of law firm, one built to achieve unparalleled outcomes for our clients on their most complex, multijurisdictional matters – everywhere in the world. A firm that advises at the forefront of the forces changing the current of global business and that is unrivalled in its global strength.
Our clients benefit from the collective experience of teams who work with many of the world’s most influential companies and institutions, and have a history of precedent-setting innovations.
Together our lawyers advise more than a third of NYSE-listed businesses, a fifth of the NASDAQ and a notable proportion of the London Stock Exchange, the Euronext, Euronext Paris and the Tokyo and Hong Kong Stock Exchanges.
On June 20, 2016, the US Supreme Court released its much-anticipated decision in Cuozzo Speed Technologies, LLC v. Lee, the first Supreme Court case to pass upon the post-grant patent review procedures...
On June 20, 2016, the U.S. Supreme Court released its
much-anticipated decision in Cuozzo Speed Technologies, LLC v. Lee,
the first Supreme Court case to pass upon the post-grant patent
review procedures created by the Leahy-Smith America Invents Act
("AIA"). Ruling against the patent owner, the Court
approved of a rule by which the U.S. Patent & Trademark Office
("Office") interprets patent claims as broadly as the
patent will allow, making it easier for a challenger in inter
partes review ("IPR") to prove that the claims are
unpatentable. At the same time, the Court upheld the statute
barring judicial review of decisions to institute IPR, but left the
scope of this bar uncertain.
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