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2021
Cisco 起诉 Estech 专利侵权
提起诉讼
Cisco Systems 起诉 Estech Systems，指控其故意侵犯 Cisco 三项与 VoIP 相关的专利，并寻求有关不侵权的确认性救济。
来源摘录
Cisco Systems Inc. filed suit against Estech Systems Inc. for the willful infringement of three of its patents relating to Voice over Internet Protocol (VoIP) on Thursday.
Additionally, the Eastern District of Texas complaint asks for declaratory relief concerning its non-infringement patents that are the subject of other Estech-initiated infringement litigation.