8475205

PerfectVision filed a declaratory-judgment action against PPC Broadband. The original complaint named six PPC patents, and PerfectVision later moved to add several newly issued PPC patents including the '353 patent; leave to amend was granted June 10, 2013. The August 29, 2014 Markman opinion identified a different set of six patents then at issue, indicating the '353 count may have dropped out, but the specific disposition order was not retrieved.

PPC Broadband sued Corning Optical Communications RF LLC. The '431 patent was expressly one of six patents-in-suit, alongside U.S. 8,075,338, 8,366,481, 8,469,740, 8,475,205, and 8,485,845. The final outcome was not confirmed in the sources retrieved.

PPC Broadband sued PCT International. The case is listed on the Google Patents page for US 8,475,205 under family litigation; the original complaint asserted US 8,366,481, and PCT's non-infringement, invalidity, and unenforceability contentions were cited in later PPC family patent IDS materials. Outcome was not confirmed.

PPC Broadband filed a case in N.D.N.Y.; the defendant was not identified from available sources. The case appears on Google Patents' litigation listing for US 8,475,205, but the narrative could not confirm that the '205 patent itself, as opposed to another family member, was asserted.