Kenneth R O'Rourke

Kenneth R O'Rourke
400 South Hope Street
Los Angeles
+1 213 430 7281
+1 213 430 6407


Who's Who Legal Competition: Lawyers

Ken O’Rourke represents established and emerging companies in complex, multi-forum civil litigation and government investigations. His experience runs the gamut from antitrust class actions, international cartels, monopolisation, merger challenges, intellectual property lawsuits involving antitrust issues such as defending reverse payment pharmaceutical cases and standard essential patents being enforced on industry leaders, as well as handling complex business, technical and financial litigation.

He represents leading companies accused of participating in international price-fixing cartels, litigated such cases as the US Department of Justice’s lawsuits seeking to block AT&T’s merger with Time Warner, its prior attempt to merge with T-Mobile, and US Airways' merger with American Airlines.  He defended against Rambus Inc’s decade-long worldwide litigation campaign to enforce patents on industry-standard computer memory products. He also served as a special prosecutor trying a criminal vehicle manslaughter case and other alleged crimes to California juries. 

Drawing upon his 30 years of litigation experience at O’Melveny and his leadership in the profession, Ken also served as interim chief legal officer of one of the US's largest health insurers, chaired the California State Bar antitrust and unfair competition law section, currently chairs the Antitrust Litigation Forum, and is a continuing member of the ABA antitrust section's international cartel task force and programmes committee.  Ken is ranked by Chambers USA, quoting commentators saying he is “very smart, experienced and well known in the cartel community” and “a very talented litigator, the whole nine yards”. He has a presence on both coasts and is a solicitor in England & Wales.

WWL says: Kenneth O'Rourke is a leading name in the US competition market who is described by peers as "a highly skilled and technical antitrust lawyer with excellent litigation judgement".

This biography is an extract from Who's Who Legal: Competition which can be purchased from our Shop.

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