Patents by Inventor Andrew Lam

Andrew Lam 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: 12177329
    Abstract: The disclosed exemplary embodiments include computer-implemented apparatuses and methods that validate confidential data based privacy-preserving homomorphic computations involving encrypted data. For example, an apparatus may receive, from a first computing system, encrypted data that includes a first encrypted value representative of at least one of first account data or an element of cryptographic data. Based on the first encrypted value and on second encrypted values, the apparatus may generate encrypted residual values representative of second account data associated with one or more reference accounts, and the apparatus may request and receive a decrypted residual value associated with each of the encrypted residual values from a second computing system. The apparatus may transmit the decrypted residual values to the first computing system, which may validate the first account data based on at least the decrypted residual values and perform operations associated with the validated first account data.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: December 24, 2024
    Assignee: The Toronto-Dominion Bank
    Inventors: Brian Andrew Lam, Milos Dunjic, Alexey Shpurov
  • Publication number: 20240407885
    Abstract: Disclosed herein are stabilizer systems that include a base for securing the stabilizer system to a patient table by inserting the base between the patient table and the mattress on the patient table. The stabilizer systems also include a connector that connects a lockable articulating arm to the base. The base protrudes from under the mattress slightly to provide a sturdy and predictable surface to attach the articulating arm of the stabilizer system. The base can then be used to support a lockable articulating arm with a clamp at its distal end for holding an access sheath or delivery system. The connectors attach the articulating arm to the base so that the articulating arm is above the sterile surgical drape to maintain sterility of the articulating arm. The stabilizer systems are advantageous in jugular access procedures.
    Type: Application
    Filed: August 23, 2024
    Publication date: December 12, 2024
    Inventors: Zachary Charles VanEvery, Linda Thai, Daniel James Murray, Max Alexander Cruzan, Jonathan Andrew Lam, Ajay Kumar Dass
  • Publication number: 20240390655
    Abstract: A device for delivering a guidewire to a target location in a patient's body includes a hollow needle having: a lumen configured to receive the guidewire; a body section; and a biased section, the biased section configured to bend relative to the body section, the biased section located on a distal end of the hollow needle. The device includes a catheter having a catheter lumen, the catheter lumen configured to: receive the hollow needle, and maintain the biased section and the body section in relative alignment in a first configuration. The hollow needle, in response to the biased section extending out from the catheter, is configured to bend the biased section relative to the body section in a second configuration.
    Type: Application
    Filed: August 5, 2024
    Publication date: November 28, 2024
    Inventors: Jonathan Andrew Lam, Zachary Charles VanEvery, Tarannum Ishaq Gutierrez, Nithya Sridhar, Lan T. Quach, Maria G. Verastegui Jaimez
  • Patent number: 12067130
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, devices, apparatuses, and processes that maintain data confidentiality in communications involving voice-enabled devices in a distributed computing environment using homomorphic encryption. By way of example, an apparatus may receive encrypted command data from a computing system, decrypt the encrypted command data using a homomorphic private key, and perform operations that associate the decrypted command data with a request for an element of data. Using a public cryptographic key associated with a device, the apparatus generate an encrypted response that includes the requested data element, and transmit the encrypted response to the device. The device may decrypt the encrypted response using a private cryptographic key and to perform operations that present first audio content representative of the requested data element through an acoustic interface.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: August 20, 2024
    Assignee: The Toronto-Dominion Bank
    Inventors: Alexey Shpurov, Milos Dunjic, Brian Andrew Lam
  • Patent number: 12052363
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, devices, apparatuses, and processes that maintain data confidentiality in communications involving voice-enabled devices operating within a distributed computing environment. By way of example, an apparatus may receive, from a communications system across a public communications network, a request for an element of data generated by the computing system based on first audio content obtained at a device. The apparatus may obtain the requested data element and further, may generate acoustic data representative of at least a portion of the requested data element. The apparatus may also generate an encrypted response to the received request that includes the acoustic data, and transmit the encrypted response to the device across the public communications network.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: July 30, 2024
    Assignee: The Toronto-Dominion Bank
    Inventors: Alexey Shpurov, Milos Dunjic, Brian Andrew Lam
  • Publication number: 20240156460
    Abstract: A method comprises delivering a medical implant and a delivery device to a tissue wall within a heart of a patient. The delivery device can be attached to the medical implant. The method further involves maneuvering the delivery device to place at least a portion of the medical implant at a desired position with respect to the tissue wall and delivering an expandable stagnation device proximate to the medical implant. The expandable stagnation device is configured to at least partially inhibit blood flow. The method further involves injecting a contrast solution between at least a portion of the medical implant and at least a portion of the expandable stagnation device, collapsing the expandable stagnation device, and detaching the delivery device from the medical implant.
    Type: Application
    Filed: December 21, 2023
    Publication date: May 16, 2024
    Inventor: Jonathan Andrew Lam
  • Patent number: 11886764
    Abstract: The present disclosure involves systems, software, and computer implemented methods for presenting information and/or services to a user. One example method includes establishing a user session between a computing device operated by an entity and a first user device operated by a customer of the entity. The first user device provides a first interface through which the customer participates in the user session. The method also includes determining, based at least on a complexity of first information to be provided to the customer, to change the first interface to a new interface. Further, the method includes selecting, based on the complexity of the first information, a new interface, where the new interface is provided by at least a second user device. Furthermore, the method includes implementing the new interface to facilitate for the customer to participate in the user session.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: January 30, 2024
    Inventor: Brian Andrew Lam
  • Publication number: 20230338028
    Abstract: A delivery system comprises a catheter configured to be delivered through a blood flow pathway of a heart and an implant configured to maintain an opening in a tissue wall to allow blood flow through the opening and into the blood flow pathway and be delivered via the catheter. The implant is at least partially composed of a flexible material to allow the implant to bend with the catheter.
    Type: Application
    Filed: June 16, 2023
    Publication date: October 26, 2023
    Inventors: Daniel James Murray, Eric Jason Noda, Linda Thai, Jonathan Andrew Lam
  • Publication number: 20230327159
    Abstract: An energy conversion device for conversion of chemical energy into electricity. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous catalyst material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous catalyst material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Application
    Filed: May 31, 2023
    Publication date: October 12, 2023
    Applicant: QUSWAMI, INC.
    Inventors: Jawahar GIDWANI, Arash HAZEGHI, Andrew LAM, Attila HORVATH
  • Patent number: 11699799
    Abstract: An energy conversion device for conversion of chemical energy into electricity. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous catalyst material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous catalyst material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: July 11, 2023
    Assignee: QUSWAMI, INC.
    Inventors: Jawahar Gidwani, Arash Hazeghi, Andrew Lam, Attila Horvath
  • Publication number: 20230155810
    Abstract: The disclosed exemplary embodiments include computer-implemented apparatuses and methods that validate confidential data based privacy-preserving homomorphic computations involving encrypted data. For example, an apparatus may receive, from a first computing system, encrypted data that includes a first encrypted value representative of at least one of first account data or an element of cryptographic data. Based on the first encrypted value and on second encrypted values, the apparatus may generate encrypted residual values representative of second account data associated with one or more reference accounts, and the apparatus may request and receive a decrypted residual value associated with each of the encrypted residual values from a second computing system. The apparatus may transmit the decrypted residual values to the first computing system, which may validate the first account data based on at least the decrypted residual values and perform operations associated with the validated first account data.
    Type: Application
    Filed: January 13, 2023
    Publication date: May 18, 2023
    Inventors: Brian Andrew LAM, Milos Dunjic, Alexey Shpurov
  • Patent number: 11595384
    Abstract: There is a provided a digital identity network interface system that may include a communications module and a processor. The processor may be configured to receive a signal representing a digital identity request, the digital identity request defining one or more scopes associated with the request, at least one of the scopes identifying a data type associated with the request, generate a query based on the scopes by translating at least one of the scopes into a query having a query format associated with a digital identity network, the digital identity network storing data associated with a plurality of users, send a signal representing the query to the digital identity network, send a link to an authorization device, after successful authentication, obtain data associated with the digital identity request from the digital identity network, and release at least some of the data.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: February 28, 2023
    Assignee: The Toronto-Dominion Bank
    Inventors: Malcolm Clarke, Brian Andrew Lam
  • Publication number: 20230059618
    Abstract: An energy conversion device for conversion of various energy forms into electricity. The energy forms may be chemical, photovoltaic or thermal gradients. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The substrate itself can be planar, two-dimensional, or three-dimensional, and possess internal and external surfaces. These substrates may be rigid, flexible and/or foldable. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous conductor material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous conductor material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Application
    Filed: October 21, 2022
    Publication date: February 23, 2023
    Inventors: Jawahar M. Gidwani, Attila Horvath, Andrew Lam
  • Patent number: 11588617
    Abstract: The disclosed exemplary embodiments include computer-implemented apparatuses and methods that validate confidential data based privacy-preserving homomorphic computations involving encrypted data. For example, an apparatus may receive, from a first computing system, encrypted data that includes a first encrypted value representative of at least one of first account data or an element of cryptographic data. Based on the first encrypted value and on second encrypted values, the apparatus may generate encrypted residual values representative of second account data associated with one or more reference accounts, and the apparatus may request and receive a decrypted residual value associated with each of the encrypted residual values from a second computing system. The apparatus may transmit the decrypted residual values to the first computing system, which may validate the first account data based on at least the decrypted residual values and perform operations associated with the validated first account data.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: February 21, 2023
    Assignee: The Toronto-Dominion Bank
    Inventors: Brian Andrew Lam, Milos Dunjic, Alexey Shpurov
  • Publication number: 20230006809
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, apparatuses, and processes that perform homomorphic computations on encrypted third-party data within a distributed computing environment. For example, an apparatus receives a homomorphic public key and encrypted transaction data characterizing an exchange of data from a computing system, and encrypts modelling data associated with a first predictive model using the homomorphic public key. The apparatus may perform homomorphic computations that apply the first predictive model to the encrypted transaction data in accordance with the encrypted first modelling data, and transmit an encrypted first output of the homomorphic computations to the computing system, which may decrypt the encrypted first output using a homomorphic private key and generate decrypted output data indicative of a predicted likelihood that the data exchange represents fraudulent activity.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 5, 2023
    Inventors: Alexey SHPUROV, Lovell HODGE, Brian Andrew LAM, Leslie Carol THOMAS
  • Patent number: 11502207
    Abstract: An energy conversion device for conversion of various energy forms into electricity. The energy forms may be chemical, photovoltaic or thermal gradients. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The substrate itself can be planar, two-dimensional, or three-dimensional, and possess internal and external surfaces. These substrates may be rigid, flexible and/or foldable. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous conductor material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous conductor material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: November 15, 2022
    Assignee: QuSwami, Inc.
    Inventors: Jawahar M. Gidwani, Andrew Lam, Attila Horvath
  • Publication number: 20220329431
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, devices, apparatuses, and processes that maintain data confidentiality in communications involving voice-enabled devices operating within a distributed computing environment. By way of example, an apparatus may receive, from a communications system across a public communications network, a request for an element of data generated by the computing system based on first audio content obtained at a device. The apparatus may obtain the requested data element and further, may generate acoustic data representative of at least a portion of the requested data element. The apparatus may also generate an encrypted response to the received request that includes the acoustic data, and transmit the encrypted response to the device across the public communications network.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Inventors: Alexey SHPUROV, Milos DUNJIC, Brian Andrew LAM
  • Patent number: 11469878
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, apparatuses, and processes that perform homomorphic computations on encrypted third-party data within a distributed computing environment. For example, an apparatus receives a homomorphic public key and encrypted transaction data characterizing an exchange of data from a computing system, and encrypts modelling data associated with a first predictive model using the homomorphic public key. The apparatus may perform homomorphic computations that apply the first predictive model to the encrypted transaction data in accordance with the encrypted first modelling data, and transmit an encrypted first output of the homomorphic computations to the computing system, which may decrypt the encrypted first output using a homomorphic private key and generate decrypted output data indicative of a predicted likelihood that the data exchange represents fraudulent activity.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 11, 2022
    Assignee: The Toronto-Dominion Bank
    Inventors: Alexey Shpurov, Lovell Hodge, Brian Andrew Lam, Leslie Carol Thomas
  • Patent number: 11444782
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, apparatuses, and processes that dynamically manage exchanges of data using a cryptographically secure distributed ledger and homomorphic commitments. For example, and in response to an occurrence of a triggering event, an apparatus may obtain parameter values that characterize the data exchange, first commitment values representative of the parameter values, and a first digital signature. In response to a verification of the first digital signature, the apparatus may apply a second digital signature to commitment data that includes the first commitment values and a second commitment value representative of the first digital signature. The apparatus may transmit a signal that includes the commitment data and the second digital signature to a computing system, which generates an element of distributed ledger that includes the commitment data and the second digital signature in response to a verification of the second digital signature.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: September 13, 2022
    Assignee: The Toronto-Dominion Bank
    Inventors: Brian Andrew Lam, Alexey Shpurov, Helena Litani
  • Patent number: 11411734
    Abstract: The disclosed exemplary embodiments include computer-implemented systems, devices, apparatuses, and processes that maintain data confidentiality in communications involving voice-enabled devices operating within a distributed computing environment. By way of example, an apparatus may receive, from a communications system across a public communications network, a request for an element of data generated by the computing system based on first audio content obtained at a device. The apparatus may obtain the requested data element and further, may generate acoustic data representative of at least a portion of the requested data element. The apparatus may also generate an encrypted response to the received request that includes the acoustic data, and transmit the encrypted response to the device across the public communications network.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 9, 2022
    Assignee: The Toronto-Dominion Bank
    Inventors: Alexey Shpurov, Milos Dunjic, Brian Andrew Lam