Patents by Inventor Vishnuvajhala Subrahmanyam
Vishnuvajhala Subrahmanyam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230267469Abstract: The present disclosures presents system and methods for blockchain based payment networks. One such method comprises preparing, by a payment network, a request to complete a transaction from an digital currency account associated with a payer digital wallet for entry on a blockchain ledger, wherein the request to complete the transaction includes an amount and a payee address associated with a fiat currency account; sending the request to complete the transaction to the blockchain ledger; approving the request to complete the transaction; and adjusting a balance of the payer digital wallet and a balance of the fiat currency account in response to approval of the request to complete the transaction by writing the transaction comprising the amount and the payee address to the blockchain ledger, wherein a value of the digital currency substantially matches a value of the fiat currency.Type: ApplicationFiled: April 26, 2023Publication date: August 24, 2023Inventors: Sastry Durvasula, Andras Ferenczi, Upendra Mardikar, Keshav Narsipur, Vishnuvajhala Subrahmanyam, Sathish B. Muthukrishnan
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Patent number: 11669841Abstract: A payment network is operated with a blockchain-based ledger. In one embodiment, a request is prepared to complete a transaction from an account associated with a payer digital wallet for entry on a blockchain. The request includes an amount and a payee identifier associated with a payee digital wallet. The request is sent to the blockchain and approved. A balance of the payer digital wallet and a balance of the payee digital wallet are adjusted in response to approval of the request to complete the transaction by at least writing a portion of data associated with the transaction comprising the amount and the payee identifier to the blockchain. A reputation ledger associated with the account is recorded in the blockchain in association with the transaction. The reputation ledger includes at least one reputation score associated with at least one previous transaction conducted by the account.Type: GrantFiled: October 12, 2020Date of Patent: June 6, 2023Assignee: American Express Travel Related Services Company, Inc.Inventors: Sastry Durvasula, Andras Ferenczi, Upendra Mardikar, Keshav Narsipur, Vishnuvajhala Subrahmanyam, Sathish B. Muthukrishnan
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Publication number: 20220398620Abstract: A blockchain-based loyalty point system that comprises a host computing device for interfacing with authorized devices and loyalty partner websites in a loyalty point network. In one example, the loyalty point network includes a blockchain network and a host computing device. The host computing device is configured to receive a registration request from a client device for access to the loyalty point network. The host computing device causes a registration proposal for the client device to be written to the blockchain network and receives a point adjustment request from a loyalty partner website. The host computing device executes a smart contract in response to receiving the point adjustment request from the loyalty partner website, and the smart contract is executed to adjust the account balance of the customer account based at least in part on the point adjustment request.Type: ApplicationFiled: August 22, 2022Publication date: December 15, 2022Inventors: Sastry Durvasula, Andras Ferenczi, Harish Naik, Vishnuvajhala Subrahmanyam
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Patent number: 11449887Abstract: A blockchain-based loyalty point system may include a blockchain API host that receives a request to transfer an amount of loyalty points from a first customer account to a second customer account. The system may validate the request by performing a cryptographic operation on the request using a public key associated with the first customer account. The system may also propagate a proposal to consensus participants for writing to a blockchain, wherein the proposal comprises the first customer account, the second customer account, and the amount of loyalty points. The system may also receive an exchange request from a loyalty wallet associated with the second customer account, validate the exchange request by performing the cryptographic operation on the exchange request using a public key, and propagate an exchange proposal to the consensus participants for writing to the blockchain.Type: GrantFiled: October 9, 2017Date of Patent: September 20, 2022Assignee: American Express Travel Related Services Company, Inc.Inventors: Sastry Durvasula, Andras Ferenczi, Harish Naik, Vishnuvajhala Subrahmanyam
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Publication number: 20210042758Abstract: A payment network is operated with a blockchain-based ledger. In one embodiment, a request is prepared to complete a transaction from an account associated with a payer digital wallet for entry on a blockchain. The request includes an amount and a payee identifier associated with a payee digital wallet. The request is sent to the blockchain and approved. A balance of the payer digital wallet and a balance of the payee digital wallet are adjusted in response to approval of the request to complete the transaction by at least writing a portion of data associated with the transaction comprising the amount and the payee identifier to the blockchain. A reputation ledger associated with the account is recorded in the blockchain in association with the transaction. The reputation ledger includes at least one reputation score associated with at least one previous transaction conducted by the account.Type: ApplicationFiled: October 12, 2020Publication date: February 11, 2021Inventors: Sastry Durvasula, Andras Ferenczi, Upendra Mardikar, Keshav Narsipur, Vishnuvajhala Subrahmanyam, Sathish B. Muthukrishnan
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Patent number: 10832247Abstract: A system for operating a payment network with a blockchain-based ledger may prepare a request to complete a transaction from an account associated with a payer digital wallet for entry on the blockchain. The request may include an amount and payee address associated with a payee digital wallet. The system may also send the request to the blockchain using a blockchain interface. The system may approve or decline the request. The system may further adjust a balance of the payer a balance of the payee to reflect approval of the request. The adjustment may include writing the transaction to the blockchain.Type: GrantFiled: September 15, 2016Date of Patent: November 10, 2020Assignee: AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC.Inventors: Sastry Durvasula, Andras Ferenczi, Upendra Mardikar, Keshav Narsipur, Vishnuvajhala Subrahmanyam, Sathish B. Muthukrishnan
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Publication number: 20190108542Abstract: A blockchain-based loyalty point system may include a blockchain API host that receives a request to transfer an amount of loyalty points from a first customer account to a second customer account. The system may validate the request by performing a cryptographic operation on the request using a public key associated with the first customer account. The system may also propagate a proposal to consensus participants for writing to a blockchain, wherein the proposal comprises the first customer account, the second customer account, and the amount of loyalty points. The system may also receive an exchange request from a loyalty wallet associated with the second customer account, validate the exchange request by performing the cryptographic operation on the exchange request using a public key, and propagate an exchange proposal to the consensus participants for writing to the blockchain.Type: ApplicationFiled: October 9, 2017Publication date: April 11, 2019Applicant: American Express Travel Related Services Company, Inc.Inventors: Sastry Durvasula, Andras Ferenczi, Harish Naik, Vishnuvajhala Subrahmanyam
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Publication number: 20180075453Abstract: A system for operating a payment network with a blockchain-based ledger may prepare a request to complete a transaction from an account associated with a payer digital wallet for entry on the blockchain. The request may include an amount and payee address associated with a payee digital wallet. The system may also send the request to the blockchain using a blockchain interface. The system may approve or decline the request. The system may further adjust a balance of the payer a balance of the payee to reflect approval of the request. The adjustment may include writing the transaction to the blockchain.Type: ApplicationFiled: September 15, 2016Publication date: March 15, 2018Applicant: American Express Travel Related Services Company, Inc.Inventors: Sastry Durvasula, Andras Ferenczi, Upendra Mardikar, Keshav Narsipur, Vishnuvajhala Subrahmanyam