Three “individual private companies in association with each other doing business collectively as Umbra Technologies” have together filed separate Western District of Texas suits against Cisco (1:23-cv-00903) and VMWare (1:23-cv-00904). The defendants are accused of infringing four network security patents through the provision of their respective network virtualization products and services. The complaints define “UMBRA” to be the three plaintiffs collectively, with the coplaintiffs later pleading that “UMBRA” is “the assignee and owner of the right, title and interest in and to” each patent-in-suit.