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Ring Protection Expands Networking Campaign into Texas

November 16, 2018

Ring Protection LLC has followed up the prior week’s complaints against Colt Internet, Coriant (Tellabs), Cox Enterprises (Cox Communications), and SoftBank (Sprint), with a new case filed against NEC (3:18-cv-03055). The NPE asserts in the campaign a single patent, generally related to fault protection in a bidirectional ring network, originally developed by Corrigent Systems (later renamed Orckit-Corrigent). The defendants’ network architectures are at issue; with respect to NEC, Ring Protection names the “SpectalWave U-Node”, which the complaint alleges supports Four-Fiber Synchronous Optical Network (SONET) Bidirectional Line Switched Ring (BLSR). The earlier complaints were filed in the District of Delaware; NEC has been sued in the Northern District of Texas.


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