In the vast majority of depositions taken pursuant to an inter partes review, the deponent will have previously provided direct testimony via a declaration. The typical IPR deposition is therefore an opportunity for an opposing party to cross examine the witness, and the PTAB has set the standard duration of cross examination at seven hours. 37 C.F.R. 42.53(c)(2) (further providing four hours for re-direct examination and two hours for re-cross examination).
The seven-hour cross examination rule does contemplate extending the duration of a deposition, as may be “stipulated by the parties or ordered by the Board.” Id. Where each party retains an expert fact witness in an IPR, it can be mutually beneficial for the parties to stipulate to extended depositions. In one extreme case, the parties agreed to stipulated extensions such that the deposition of a single witness extended over a five-day period. Continue reading Extending Depositions in IPRs