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AT&T was sued for patent infringement on Friday in Texas Eastern District Court. The suit, filed by Zeisler PLLC and Machat & Associates on behalf of Mobility Workx, alleges that the defendant’s 4G and 5G services and related technology infringe three patents owned by the plaintiff.
RPXcorp.com also cited:
After a somewhat complicated turn before the Patent Trial and Appeal Board (PTAB), involving two trips up to the Federal Circuit, Mobility Workx, LLC is back in district court, accusing AT&T (AT&T Mobility) (4:23-cv-00594) of infringing the same three patents, subsets of which were previously asserted against Deutsche Telekom (T-Mobile) and Verizon (Verizon Wireless). Two of the patents generally relate to the allocation of resources in a wireless network, while the third broadly concerns mobile network emulation to facilitate mobile device testing. Last July, the PTAB affirmed the cancellation of some, but not all, of the challenged claims from one of the two resource allocation patents.
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