VidStream LLC v. Twitter, Inc., No. 19-1734 (Fed. Cir. 2020)Annotate this Case
VidStream’s patent, titled: “Recording and Publishing Content on Social Media Websites,” has a priority date of May 2012. Twitter filed two petitions for inter partes review (IPR), with method claims 1–19 in one petition, and medium and system claims 20–35 in the other. Twitter cited the Bradford book as the primary reference for both petitions, combined with other references. With the petitions, Twitter filed copies of several pages of the Bradford book and explained their relevance to the claims. Twitter also filed a Bradford 2011 copyright page and copies of archived webpages from the Internet Archive, showing the Bradford book listed on a publicly accessible website bearing a November 2011 website date and website pages dated December 6, 2011, showing the Bradford book available for purchase from Amazon.
The Patent Trial and Appeal Board held that claims 1–35 are unpatentable as obvious. The Federal Circuit affirmed the Board’s holding that Bradford is prior art. The Board permitted both sides to provide evidence concerning the reference date of the Bradford book; the evidence well supports its finding that Bradford was published and publicly accessible before the patent’s 2012 priority date. With Bradford as the primary reference, VidStream did not appeal the unpatentability of claims 1–35.