ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,014, issued on June 23, was assigned to Dell Products LP (Round Rock, Texas).

"Efficient cluster upgrade and downgrade" was invented by A Ashok Kumar Reddy (Bangalore, India) and Shantanu Joshi (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example methodology includes declaring a node in a cluster of multiple nodes as a lead node to perform a cluster upgrade. While the lead node is performing the upgrade operations, the remaining nodes in the cluster continue to provide the cluster services. The upgrade operations on the lead node include migrating applications on the lead node to one of the other nodes in the cluster and perfo...