U.S. Patent 11036720 was awarded to Advanced New Technologies Co., Ltd. on June 15, 2021 and is entitled “Blockchain-based hierarchical data storage.” The first named inventor is Haizhen Zhuo of Hangzhou, . The abstract contains an overview of the patent disclosure:

Methods, systems, and apparatuses are disclosed for blockchain-based hierarchical data storage. One method includes determining, based on a blockchain stored in a database that includes multiple levels of storage, a block number interval that includes one or more block numbers associated with data nodes included in a state Merkle tree stored in a target data storage and to be migrated to a lower level of storage with lower storage cost in response to the data nodes meeting a data migration condition, each of the data nodes is associated with a block number of a block of the blockchain where the corresponding data node is last updated, and the data nodes in the state Merkle tree are in the form of key-value pairs (KVPs), each key of the KVPs comprises a node identifier (ID) and a block number associated with the corresponding data node. Link to Full Patent

This blockchain patent was originally filed on February 13, 2020  as U.S. Patent Application 16/790605 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11036720. The primary examiner was Uyen T Le.

Advanced New Technologies Co., Ltd., who is the original assignee of this patent, has at least 1031 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 0 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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