ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,400, issued on March 24, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Block write cache replication model" was invented by Junxiang Wang (Shanghai), Vadim Makhervaks (Bellevue, Wash.), Yingrui Tong (Shanghai), Sijia Huang (Shenghai, China), Yuxing Zhou (Shenghai, China), Zhihao Liu (Shanghai), Xigeng Sun (Shanghai) and Bangzhu Zhu (Kunming, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Caching write input/output (I/O) operations in a replica-based storage system. A write I/O operation is received from a consumer, and a corresponding replica list is identified. A first replica set is selected from the replica list for...