Patents by Inventor Leandro NUNES DA SILVA CARVALHO

Leandro NUNES DA SILVA CARVALHO 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).

  • Patent number: 11997211
    Abstract: A method for aggregated storage of observational data on a blockchain includes: receiving, by a receiver of a processing server, a plurality of data entries, wherein the plurality of data entries includes (i) one or more data entries received from each of a plurality of different external devices, or (ii) multiple data entries received from one external device; canonicalize, by a processor of the processing server, the received plurality of data entries into a single data value; hashing, by the processor of the processing server, the single data value to generate a hashed data value; transmitting, by a transmitter of the processing server, the hashed data value to a blockchain node in a blockchain network; receiving, by the receiver of the processing server, a reference value from the blockchain node; and storing, in a memory of the processing server, the received reference value with the plurality of data entries.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: May 28, 2024
    Assignee: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Robert Collins, Conor McQuillan, Susan Lynch, Leandro Nunes da Silva Carvalho, Bella Wu
  • Publication number: 20230102726
    Abstract: A method for aggregated storage of observational data on a blockchain includes: receiving, by a receiver of a processing server, a plurality of data entries, wherein the plurality of data entries includes (i) one or more data entries received from each of a plurality of different external devices, or (ii) multiple data entries received from one external device; canonicalize, by a processor of the processing server, the received plurality of data entries into a single data value; hashing, by the processor of the processing server, the single data value to generate a hashed data value; transmitting, by a transmitter of the processing server, the hashed data value to a blockchain node in a blockchain network; receiving, by the receiver of the processing server, a reference value from the blockchain node; and storing, in a memory of the processing server, the received reference value with the plurality of data entries.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 30, 2023
    Applicant: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Robert COLLINS, Conor MCQUILLAN, Susan LYNCH, Leandro NUNES DA SILVA CARVALHO, Bella WU
  • Publication number: 20230047625
    Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.
    Type: Application
    Filed: November 1, 2022
    Publication date: February 16, 2023
    Inventors: Steven C. DAVIS, Rob BYRNE, Robert COLLINS, Leandro NUNES DA SILVA CARVALHO, Deborah Eleanor BARTA
  • Patent number: 11516001
    Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: November 29, 2022
    Assignee: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Steven C. Davis, Rob Byrne, Robert Collins, Leandro Nunes Da Silva Carvalho, Deborah Eleanor Barta
  • Publication number: 20210398093
    Abstract: A method for triggering payment transactions through predetermined events identified using a blockchain includes: receiving, at a first system, trigger data including a first account identifier, second account identifier, and trigger event values; receiving, at the first system, blockchain data values, each including a hash value; identifying, by the first system, a match between a specific blockchain data value and a specific trigger event value based on the hash value; transmitting, by the first system, a notification message to a second system including the first account identifier and second account identifier; identifying, by the second system, a first payment identifier using the first account identifier and a second payment identifier using the second account identifier; and initiating, by the second system, a payment transaction for payment from a transaction account associated with the first payment identifier to a transaction account associated with the second payment identifier.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 23, 2021
    Applicant: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Susan Lynch, Leandro Nunes Da Silva Carvalho, Bella Wu, Paul Taylor, Robert Collins, Deborah Eleanor Barta
  • Publication number: 20210182869
    Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.
    Type: Application
    Filed: February 16, 2021
    Publication date: June 17, 2021
    Applicant: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Steven C. DAVIS, Rob BYRNE, Robert COLLINS, Leandro NUNES DA SILVA CARVALHO, Deborah Eleanor BARTA
  • Publication number: 20200374131
    Abstract: A method for conveying auditable information regarding provenance of a product that is cryptographically accurate while retaining complete anonymity of product and participant on a blockchain includes: receiving a product identifier; generating a digital token by applying a hashing algorithm to the product identifier; generating an entry value by applying the hashing algorithm to a combination of an event identifier and the digital token; generating a digital signature by digitally signing a data package using a private key of a cryptographic key pair, where the data package includes at least a blockchain address, the event identifier, and the digital token; and transmitting the blockchain address, the digital signature, and the entry value to a node in a blockchain network.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 26, 2020
    Applicant: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Steven C. DAVIS, Rob BYRNE, Robert COLLINS, Deborah Eleanor BARTA, Leandro NUNES DA SILVA CARVALHO