TI Loses Bid to Invalidate Three US Ethernet Patents

  • April 17, 2014

A jury has found that three patents owned by US Ethernet Innovations (USEI), the successor-in-interest to 3Com Corporation’s Ethernet business, are valid despite arguments to the contrary presented by Texas Instruments (TI). In 2011 USEI sued Brother, Canon, and TI for alleged infringement of four patents related to data transmission and a network interface controller (5,299,313, 5,307,459, 5,434,872, 5,732,094). After signing settlement agreements with Brother and Canon, USEI filed an amended complaint against TI in July 2012 that replaced ‘459 with a network adapter patent (5,530,874) and accused several of the company’s system-on-chip products. All five of the patents involved in this case have been previously asserted by USEI; between October 2009 and August 2013 the entity sued more than 40 companies for alleged infringement including Acer, Apple, Dell, Freescale, Lenovo, NETGEAR, Samsung, and Sony.


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