ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,121, issued on June 24, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Data storage device and method for logical range lock" was invented by Judah Gamliel Hahn (Ofra, Israel), Ramanathan Muthiah (Bangalore, India) and Daniel J. Linnen (Naperville, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "When copy commands are queued in a submission queue, there can potentially be many queued input-output (I/O) commands directed to the same logical range as the queued commands. This can result in data being invalidated immediately after it is written in memory, leading to write amplification and inefficient backend processing. To address ...