In ABC_v_Aereo, Magistrate Pitman has overruled Aereo's attorney/client privilege objections to testifying about their patent applications at deposition.
October 7, 2013, decision of Magistrate Judge Pitman, order further depositions of CEO & CTO re patent applications
[Ed. note] It seems a little scary to me to give copyright plaintiffs yet another 'in terrorem' power and motivation to sue -- the opportunity to use the lawsuit as a means for delving into the non-public details of a defendant's patented technology. ~ R.B.