U.S. Patent 10789222 was awarded to Alibaba Group Holding Limited on September 29, 2020 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:

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based hierarchical data storage. One of the methods 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 to be migrated to a lower level of storage in response to the data nodes meeting a data migration condition, wherein each of the data nodes is included in a state Merkle tree and is associated with a block number of a block of the blockchain where the corresponding data node was last updated, and the lower level of storage corresponds to a storage media with lower storage cost. Link to Full Patent

This blockchain patent was originally filed on February 13, 2020  as U.S. Patent Application 16/790596 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10789222. The primary examiner was Muluemebet Gurmu.

Alibaba Group Holding Limited, who is the original assignee of this patent, has at least 1834 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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