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Addressing the entirety of the evidence standard, the US Court of Appeals for the Federal Circuit affirmed a Patent Trial and Appeal Board finding that responsive evidence can be properly considered to demonstrate the public availability of a reference relied upon in an
inter partes review (IPR) petition.
VidStream LLC v. Twitter, Inc., Case Nos. 19-1734, -1735 (Fed. Cir. Nov. 25, 2020) (Newman, J.)
Youtoo Technologies sued Twitter for infringement of a patent directed to recording and publishing content on social media websites. In response, Twitter filed two IPR petitions challenging the asserted patent claims as obvious. The IPR petitions relied on a textbook (Bradford) as a primary reference in both petitions. Bradford was first published in 2011, but the copy provided with the petitions indicated a reprint date of 2015. The Board granted the IPR petitions and ultimately found all claims unpatentable over combinations of art including Bradford. VidStream, which emerged as the patent owner after Youtoo went through bankruptcy proceedings, appealed.