U.S. Patent 10469248 was awarded to AMRICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC. on November 05, 2019 and is entitled “API request and response balancing and control on blockchain.” The first named inventor is Shyamala Chalakudi of Phoenix, AZ. The abstract contains an overview of the patent disclosure:

A balancing and control (B&C) system for API transactions is disclosed. The system may write a request confirmation and a request acknowledgement to a blockchain in response to an API request being transmitted from a consumer system to a provider system, with the request confirmation and the request acknowledgement each comprising a request hash of the API request. The system may also write a response confirmation and a response acknowledgement to the blockchain in response to an API response being transmitted from the provider system to the consumer system, with the response confirmation and the response acknowledgement each comprising a response hash of the API response. The blockchain may execute a smart contract to compare the request hashes from the request confirmation and the request acknowledgement and the response hashes from the response confirmation and the response acknowledgement to identify one or more out-of-balance events. Link to Full Patent

This blockchain patent was originally filed on October 17, 2017  as U.S. Patent Application 15/785870 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10469248. The primary examiner was Bradley W Holder.

AMRICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, 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 3 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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