Sean M. M. Sullivan

Practice Details

• Firm Information
  Position

  Partner

  Firm Name

  Procopio, Cory, Hargreaves & Savitch LLP
• Representative Cases & Transactions
  Cases

  Representative Matters: First-chaired complex jury trial in San Diego Superior Court representing a software company against one of its own directors on claims for breaches of fiduciary duty. Obtained jury verdict in client's favor.
  First-chaired court trial in San Diego Superior Court representing company in a derivative shareholder case involving claims of breaches of fiduciary duties against management defendants brought by a pair of dissident shareholders. Decision rendered in favor of management defendants.
  Represents national aerospace manufacturer in defense of toxic tort class action claiming nuisance
  trespass from vapor intrusion of volatile organic compounds,
  seeking medical monitoring remedies.
  Represents national aerospace manufacturer in defense of toxic tort action by property owners alleging property damage resulting from ground water contamination beneath their property.
  Successfully defended financial institution against class action claims related to ATM overdraft fees. Obtained denial of class certification, summary adjudication on nearly all claims,
  eventual voluntary dismissal of entire case by plaintiff without payment of any money by the client.
  Second-chaired federal jury trial representing a software company against claims of copyright infringement. Unanimous jury verdict obtained in client's favor finding no infringement,
  also a declaration that client owned the copyright to the software at issue. Result affirmed on appeal by the Ninth Circuit.
  Defended software developer/marketer sued for alleged patent infringement, ending in nuisance value settlement.
  Defended former principals of architect firm in copyright infringement, trade secrets theft,
  unfair competition claims brought by their former partners. Asserted counterclaims for breaches of fiduciary duty, amongst others. Favorable settlement reached pre-trial.
  Second-chaired federal jury trial representing a medical device distributor against claims of patent infringement. Favorable settlement reached post-trial.