U.S. Patent 10402792 was awarded to THE TORONTO-DOMINION BANK on September 03, 2019 and is entitled “Systems and method for tracking enterprise events using hybrid public-private blockchain ledgers.” The first named inventor is Paul Mon-Wah Chan of Toronto, . The abstract contains an overview of the patent disclosure:

The disclosed embodiments include computerized systems and methods for generating secured blockchain-based ledger data structures that track occurrences of events across fragmented and geographically dispersed lines-of-business of an enterprise. In one instance, an apparatus associated with a rules authority of the secured blockchain-based ledger may detect an occurrence of a triggering event, and may access and decrypt a set of rules hashed into the secured blockchain-based ledger using a confidentially-held master cryptographic key. The apparatus may identify a rule associated with the detected event, and perform one or more operations consistent with the rule, including a disbursement of various rewards to employees in response to customer-specific interactions with the enterprise. The disclosed embodiments provide a rules process for aggregating mutually incompatible enterprise data that specifies the events, and for tracking the events in uniform data structures accessible across the enterprise. Link to Full Patent

This blockchain patent was originally filed on October 30, 2015  as U.S. Patent Application 14/928838 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10402792. The primary examiner was Dante Ravetti.

THE TORONTO-DOMINION BANK, who is the original assignee of this patent, has at least 258 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 10 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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