Despite previously denying requests to submit errata sheets in earlier proceedings, the Board has granted requests to submit errata sheets in two separate proceedings. In one group of proceedings, the request was unopposed. Illumina, Inc. v. The Trustees of Columbia Univ. in the City of New York, IPR2012-00006, Paper 77 (Oct. 1, 2013); Illumina, Inc. v. The Trustees of Columbia Univ. in the City of New York, IPR2012-00007, Paper 85 (Oct. 1, 2013); Illumina, Inc. v. The Trustees of Columbia Univ. in the City of New York, IPR2013-00011, Paper 77 (Oct. 1, 2013). In the second proceeding, the request to submit errata sheets was opposed, and the Board warned the party submitting the errata sheets that if any errata sheet changes the substance of the testimony, the Board would not consider the sheet. CBS Interactive Inc. v. Helferich Patent Licensing, LLC, IPR2013-00033, Paper 101 (Oct. 7, 2013). The Board explained that “[e]rrata sheets may correct only typographical and minor grammatical errors. The Board may decline to consider a submission of errata sheets containing any substantive change.”