1
Lewis Robert Varney, Laurence R Lipstone, William Crowder, Andrew Swart, Christopher Newton: Invalidation in a content delivery framework. Level 3 Communications, November 14, 2017: US09819554 (1 worldwide citation)

At a service on a device, for a first property including a first one or more resources: maintaining first invalidation information relating to resources associated with the first property in the memory on the device; and controlling receipt of invalidation information relating to the first property ...


2
INVALIDATION IN A CONTENT DELIVERY FRAMEWORK. Level 3 Communications, August 7, 2014: US20140223015-A1

At a service on a device, for a first property including a first one or more resources: maintaining first invalidation information relating to resources associated with the first property in the memory on the device; and controlling receipt of invalidation information relating to the first property ...