Patents by Inventor Hieu Le

Hieu Le 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: 12377244
    Abstract: A catheter device that includes a conduit having an outer wall, an internal lumen, and proximal and distal ends. The conduit further includes first and second pluralities of electrical conduits embedded in the outer wall of the conduit, which are adapted to transmit electrical current therethrough in a first direction and an opposing second direction. The conduit is adapted to transition from a pre-collapsed state to a first collapsed state when the first plurality of electrical conduits transmits a first electrical current in a first direction and the second plurality of electrical conduits transmits a second electrical current in a second direction, and transition from the first collapsed state to a second expanded state when the first plurality of electrical conduits and the second plurality of electrical conduits transmit a third electrical current in the first direction.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: August 5, 2025
    Assignee: Retriever Medical, Inc.
    Inventors: Michael Bruce Horowitz, Brandon Matthew Repko, Hieu Le, Benjamin William Bobo
  • Publication number: 20240260983
    Abstract: A medical device for removal of an occlusion at an occlusion formation site in a vessel in a patient's body. The retrieval device having a retriever sub-system and an aspiration sub-system. The retriever sub-system having a delivery catheter and an elongated delivery member that includes proximal and distal expandable elements, the proximal element being removably engaged to the elongated delivery member and the distal element being fixed to the elongated delivery member. The proximal element adapted to move axially along the elongated delivery member in a distal direction toward the distal element when the proximal element is released from the elongated delivery member, whereby, when the proximal element is disposed on a distal side of the occlusion and the distal element is disposed on a proximal side of the occlusion, the proximal and distal elements surround, isolate and contain the occlusion between the proximal and distal elements at the occlusion formation site.
    Type: Application
    Filed: April 17, 2024
    Publication date: August 8, 2024
    Inventors: Michael B Horowitz, Benjamin W Bobo, Brandon M Repko, Hieu Le
  • Publication number: 20230270460
    Abstract: A medical device for removal of an occlusion from a vessel in a patient’s body. The retrieval device having a retriever sub-system and an aspiration sub-system. The retriever sub-system having a delivery catheter and an elongated delivery member that includes proximal and distal expandable elements, the proximal element being removably engaged to the elongated delivery member and the distal element being fixed to the elongated delivery member. The proximal element adapted to move axially along the elongated delivery member in a distal direction toward the distal element when the proximal element is released from the elongated delivery member, whereby, when the proximal element is disposed on a distal side of the vessel occlusion and the distal element is disposed on a proximal side of the occlusion, the proximal and distal elements surround, isolate and contain the occlusion between the proximal and distal elements at the vessel occlusion site.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 31, 2023
    Inventors: Michael B. Horowitz, Benjamin W. Bobo, Brandon M. Repko, Hieu Le
  • Publication number: 20220387058
    Abstract: The present specification is directed towards catheter devices having expandable and collapsible lumens. Air or fluid is pumped into the catheter wall to cause it to expand. Alternatively, wires are embedded within the wall and a direction of flow of electrical current through the wires is modulated to enable the catheter device to be in the collapsed or expanded state. For example, a first wire is embedded within the wall and is helically wound along a length of the catheter device. A second wire is provided that can be removably positioned within the lumen. The direction of flow of electric current through the first and second wires is modulated to enable the catheter device to be in the collapsed or expanded state.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 8, 2022
    Inventors: Michael Bruce Horowitz, Benjamin William Bobo, Brandon Matthew Repko, Hieu Le
  • Publication number: 20220387057
    Abstract: A valve system for a catheter, such as an aspiration catheter, is disclosed and includes a valve having a proximal end and a distal end. The distal end of the valve is coupled to the catheter. The valve has a flexible lumen in a first state that is constricted or twisted. The valve system is housed within a hub, where actuation of a button on the hub causes the proximal and distal ends of the valve to rotate relative to each other to put the lumen in a second state that is unconstricted or untwisted state.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 8, 2022
    Inventors: Michael Bruce Horowitz, Benjamin William Bobo, Brandon Matthew Repko, Hieu Le
  • Publication number: 20220330959
    Abstract: The present specification is directed towards catheter devices having expandable and collapsible lumens. Air or fluid is pumped into the catheter wall to cause it to expand. Alternatively, wires are embedded within the wall and a direction of flow of electrical current through the wires is modulated to enable the catheter device to be in the collapsed or expanded state. For example, a first wire is embedded within the wall and is helically wound along a length of the catheter device. A second wire is provided that can be removably positioned within the lumen. The direction of flow of electric current through the first and second wires is modulated to enable the catheter device to be in the collapsed or expanded state.
    Type: Application
    Filed: April 15, 2022
    Publication date: October 20, 2022
    Inventors: Michael Bruce Horowitz, Brandon Matthew Repko, Hieu Le, Benjamin William Bobo
  • Patent number: 10158765
    Abstract: Services are provided based on the locations, rather than the NPA.NXX identifiers, of called and calling parties. Party location based services can be provided to the called party, to the calling party, or both. Services can include an indication of the location of each party. Services also can include an indication of charges as determined by the location of the parties, rather than the NPA.NXX identifiers. Services can be provided if the parties are using a mobile communications devices, such as a cellular phone, wireline systems (e.g., landline phones), or a combination thereof. In an example configuration, location can be provided in a hierarchy of various levels of accuracy/precision. Different levels can be representative of different resolutions of geography. An example system for facilitating party location based services includes a signaling system number 7 (SS7) network.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: December 18, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Publication number: 20160366284
    Abstract: Services are provided based on the locations, rather than the NPA.NXX identifiers, of called and calling parties. Party location based services can be provided to the called party, to the calling party, or both. Services can include an indication of the location of each party. Services also can include an indication of charges as determined by the location of the parties, rather than the NPA.NXX identifiers. Services can be provided if the parties are using a mobile communications devices, such as a cellular phone, wireline systems (e.g., landline phones), or a combination thereof. In an example configuration, location can be provided in a hierarchy of various levels of accuracy/precision. Different levels can be representative of different resolutions of geography. An example system for facilitating party location based services includes a signaling system number 7 (SS7) network.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Patent number: 9451081
    Abstract: Services are provided based on the locations, rather than the NPA.NXX identifiers, of called and calling parties. Party location based services can be provided to the called party, to the calling party, or both. Services can include an indication of the location of each party. Services also can include an indication of charges as determined by the location of the parties, rather than the NPA.NXX identifiers. Services can be provided if the parties are using a mobile communications devices, such as a cellular phone, wireline systems (e.g., landline phones), or a combination thereof. In an example configuration, location can be provided in a hierarchy of various levels of accuracy/precision. Different levels can be representative of different resolutions of geography. An example system for facilitating party location based services includes a signaling system number 7 (SS7) network.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: September 20, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Patent number: 8898770
    Abstract: A method and apparatus for accessing contact records in an electronic device with multiple operation perimeters is provided. When accessing contact records from within one operation perimeter, only contact information accessible from that operation perimeter is retrieved. An option is provided to also access contact records of an alternative operation perimeter. If the alternative operation perimeter has a higher security level than the current operation perimeter, a password or other authorization may be required. The contact records may be accessed, for example, to find information for an outgoing communication, to identify information associated with an incoming communication, or to edit a contact record.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 25, 2014
    Assignee: Blackberry Limited
    Inventors: Robert Emmett McCann, Diana Jo Schwend, Hieu Le, Stephen Patrick Newman, Benjamin John Turner, Atiq Ur Rehman Awan
  • Publication number: 20140047564
    Abstract: Management of contact records in an electronic device with multiple operation perimeters is provided. When creating a contact record from within one operation perimeter, an option is provided to save the contact record in storage resource accessible from within the current operating perimeter or in a storage resource accessible from within an alternative operation perimeter. If the alternative operation perimeter has a higher security level than the current operation perimeter, a password or other authorization may be required.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Robert Emmett McCann, Diana Jo Schwend, Hieu Le, Stephen Patrick Newman, Benjamin John Turner, Atiq Ur Rehman Awan
  • Publication number: 20140047537
    Abstract: A method and apparatus for accessing contact records in an electronic device with multiple operation perimeters is provided. When accessing contact records from within one operation perimeter, only contact information accessible from that operation perimeter is retrieved. An option is provided to also access contact records of an alternative operation perimeter. If the alternative operation perimeter has a higher security level than the current operation perimeter, a password or other authorization may be required. The contact records may be accessed, for example, to find information for an outgoing communication, to identify information associated with an incoming communication, or to edit a contact record.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Robert Emmett McCann, Diana Jo Schwend, Hieu Le, Stephen Patrick Newman, Benjamin John Turner, Atiq Ur Rehman Awan
  • Patent number: 8559608
    Abstract: A location of a calling party is provided to a called party. The location can be provided if the calling party is using a mobile communications device or a wireline system. The location of the calling party can be provided in a hierarchy of various levels of accuracy/precision representative of different geographies provided by a service provider. The choice of levels for each received call or all received calls can be configurable by the called party. The called party may subscribe to a service that provides the location information. The called party may have the option to receive location information on a per call basis. The calling party may be asked for consent. Location information can be provided for any appropriate type of call, such as, for example, voice calls, text based calls (e.g., SMS messages), or the like. In an example configuration, the SS7 network is utilized.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 15, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Publication number: 20120294433
    Abstract: Services are provided based on the locations, rather than the NPA.NXX identifiers, of called and calling parties. Party location based services can be provided to the called party, to the calling party, or both. Services can include an indication of the location of each party. Services also can include an indication of charges as determined by the location of the parties, rather than the NPA.NXX identifiers. Services can be provided if the parties are using a mobile communications devices, such as a cellular phone, wireline systems (e.g., landline phones), or a combination thereof. In an example configuration, location can be provided in a hierarchy of various levels of accuracy/precision. Different levels can be representative of different resolutions of geography. An example system for facilitating party location based services includes a signaling system number 7 (SS7) network.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: AT&T INTELLECTUAL PROPERTY I LP
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Publication number: 20120294434
    Abstract: A location of a calling party is provided to a called party. The location can be provided if the calling party is using a mobile communications device or a wireline system. The location of the calling party can be provided in a hierarchy of various levels of accuracy/precision representative of different geographies provided by a service provider. The choice of levels for each received call or all received calls can be configurable by the called party. The called party may subscribe to a service that provides the location information. The called party may have the option to receive location information on a per call basis. The calling party may be asked for consent. Location information can be provided for any appropriate type of call, such as, for example, voice calls, text based calls (e.g., SMS messages), or the like. In an example configuration, the SS7 network is utilized.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: AT&T INTELLECTUAL PROPERTY I LP
    Inventors: James Fan, Thomas Barrett, Jennifer Lam, Hieu Le
  • Publication number: 20070197956
    Abstract: A dual lumen aspiration catheter system with an aspiration catheter, a hub and a flexible strain relief, and a suction assembly. The aspiration catheter includes multiple successively connected flexible tubular components each increasing in relative flexibility in the distal direction, the most proximal tubular component connectingly extending from the hub and through the flexible strain relief. The tubular components of the aspiration catheter include, in order proximally to distally, a composite tube, an intermediate tube, a dual lumen tube, and a flexible tip tube. The dual lumen tube includes eccentrically co-located large and small tubular portions forming eccentrically co-located large and small lumens to provide a minimum cross section. The distal end of the dual lumen tube includes a convex beveled edge. The convex beveled edge and the flexible tip tube singly or jointly inflict minimal traumatic contact with a vessel wall when urged along a tortuous vascular path.
    Type: Application
    Filed: February 23, 2006
    Publication date: August 23, 2007
    Inventors: Hieu Le, Michael Schrom, Diana Wong, Kyle Matson, Dean Swanson, Kathleen Grant, James Klee
  • Publication number: 20060064123
    Abstract: A rapid exchange fluid jet thrombectomy device having a streamlined manifold and a catheter having multiple tubular segments where each tubular segment increases in flexibility in a distal direction. Torque response and pushability is enhanced by the arrangement of a proximally located tubular segment composed of a polymer-jacketed spiral metal tube in combination with an intermediate tubular section and a distal tubular section each having different degrees of flexibility. A guidewire tube exit region is provided where the intermediate tubular section joins the distal tubular section for over-the-wire guidewire usage. The polymer-jacketed spiral metal tube can extend along a partial or full length of the catheter and can include a basic continuous spiral cut which has regions of constant pitch or which has progressively increasing pitch, or in the alternative, can include an interlocking spiral cut having constant pitch regions or progressively decreasing pitch.
    Type: Application
    Filed: April 1, 2005
    Publication date: March 23, 2006
    Inventors: Michael Bonnette, Michael Schrom, Hieu Le