Inventor-controlled NPE M2M Solutions LLC has filed a second Delaware suit against Amazon (1:18-cv-01532) as its previous suit against the company remains stayed pending the outcome of inter partes reviews (IPRs) against the patents-in-suit. This latest complaint asserts two newer family members of those at issue in the other suit. As in that first case, the NPE again accuses Amazon of infringement through the provision of its Kindle e-reader “ecosystem”, including the company’s e-readers and the Whispernet content delivery network. The complaint alleges that Whispernet infringes through the use of machine-to-machine, or M2M, communications to push content to Kindle devices.