PTAB Upholds Two Straight Path Patents, Partially Invalidates a Third

  • March 10, 2016

The Patent Trial and Appeal Board (PTAB) has upheld two Straight Path networking patents (6,108,704; 6,131,121) and partially invalidated a third (6,009,469) in a combined decision issued on March 4, 2016. The PTAB’s ruling addressed three petitions for inter partes review (IPR) filed by Samsung (IPR2014-01366, IPR2014-01367, IPR2014-01368), later joined by Cisco and Avaya (IPR2015-01011, IPR2015-01007, IPR2015-01006), each of which sought to challenge various claims in the patents as obvious over prior art. In the -1366 and -1368 IPRs, the PTAB declined to overturn claims 1, 11, 12, 14, 16, 22, 23, 27, 30, and 31 of the ‘704 patent and claims 1-3, 5, 6, 9, 10, 14, 17 and 18 of the ‘121 patent, finding that the petitioners had not shown by a preponderance of the evidence that the challenged claims were invalid. However, in the -1367 IPR, the Board found that the petitioners had met their burden of proof for a subset of the asserted grounds, finding that claims 1, 2, 5 of the ‘469 patent were unpatentable. The patents all generally relate to point-to-point communication over a network.


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