ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,985, issued on March 17, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Hybrid virtual machine allocation optimization system and method" was invented by Benjamin Eric Ahlvin (Seattle), Sida Peng (Chestnut Hill, Mass.) and Abigail Sandra Atchison (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for determining an allocation plan for allocating virtual machines (VMs) to a hosted service utilizes a demand forecast that predicts future demand for VMs, a response curve that correlates user experience to VM utilization, and an estimated spot eviction rate to determine the allocation plan. The demand fore...