U.S. Patent 10439812 was awarded to SquareLink, Inc. on October 08, 2019 and is entitled “Technologies for private key recovery in distributed ledger systems.” The first named inventor is Alexander Patin of Newtown, PA. The abstract contains an overview of the patent disclosure:

In an example system for private key recovery performed by a processor of a key recovery computing system, a key recovery computing system is configured to provide an original private key. The original private key is associated with a storage location of a blockchain-based asset. The key recovery computing system is configured to receive supplemental recovery information provided by a user via a user computing device. A recovery seed is derived from at least a subset of the supplemental recovery information, wherein the recovery seed is non-invertible. The original private key and the recovery seed are stored relationally to the supplemental recovery information. In some embodiments, the processor is further configured to cryptographically protect at least one of the original private key and the recovery seed via a universal second-factor authentication (U2F) device. Link to Full Patent

This blockchain patent was originally filed on May 09, 2018  as U.S. Patent Application 15/974802 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10439812. The primary examiner was Chau Le.

SquareLink, Inc., who is the original assignee of this patent, has at least 2 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 2 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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