A recent decision could significantly expand the attorney-client privilege in commercial litigation to include communications with outside investors with some stake in the litigation. The decision, involving a contentious patent dispute, finds that a non-party “equity investor” still shared “a common legal interest in the validity of the patent-in-suit” so that communications between the investor and the plaintiff did not waive claims of privilege.
While the opinion declined to decide whether a simple agreement to fund litigation between two parties could be enough to establish shared interest in litigation, the court noted that an equity investor with a stake in the disputed property had more than a “merely commercial” relationship with the party—although the court said little more.
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