New Eastern District of Texas Campaign, with Ties to a Familiar Group of NPEs, Goes After E-Commerce Websites

February 26, 2021

Gravel Rating Systems LLC has kicked off litigation over a “knowledge filter” patent, suing Cellco Partnership d/b/a Verizon Wireless (4:21-cv-00153), Costco (4:21-cv-00149), Deutsche Telekom (T-Mobile) (4:21-cv-00152), Lowe’s (4:21-cv-00150), and Target (4:21-cv-00151), all in the Eastern District of Texas. The defendants are accused of infringement through their respective provision of e-commerce websites, the complaints highlighting features for posting user reviews of products listed for sale. Gravel Rating is part of a raft of related NPEs to launch litigation over the past couple of years—one which, according to public records, continues to grow.

Subscription Required

This content requires a subscription to view

  • Over 7,000 news articles covering new patent cases, key policy decisions, and USPTO assignments
  • Advanced custom alerts for campaigns and entities
  • Proprietary litigation timelines
  • Full access to Federal Circuit, PTAB, and ITC dockets
  • Judge, venue, and law firm analytics