Patents by Inventor Loi Ying Liu

Loi Ying Liu 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).

  • Publication number: 20240090583
    Abstract: A puff detection device (10) comprising a capacitive puff sensor (C2), a detection signal generator (140) for connection with the puff sensor (C2) and having an ESD diode (D2) at an input node (IN2), and a reference signal generator (120) which is configured to generate a train of reference pulses (CKI) having a reference frequency and comprises a reference capacitor (C1). The reference signal generator (120) includes a compensation device (D1) which is configured to provide a leakage current path at a charging node (IN1) of the reference capacitor (C1).
    Type: Application
    Filed: September 23, 2021
    Publication date: March 21, 2024
    Inventor: Loi Ying Liu
  • Publication number: 20230397670
    Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Applicant: Altria Client Services LLC
    Inventors: Raymond W. LAU, Eric HAWES, Loi Ying LIU
  • Publication number: 20230329349
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Application
    Filed: May 12, 2023
    Publication date: October 19, 2023
    Applicant: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Patent number: 11771139
    Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: October 3, 2023
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Raymond W. Lau, Eric Hawes, Loi Ying Liu
  • Publication number: 20230270179
    Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Application
    Filed: May 4, 2023
    Publication date: August 31, 2023
    Applicant: Altria Client Services LLC
    Inventors: Raymond W. LAU, Eric Hawes, Loi Ying Liu
  • Publication number: 20230269831
    Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 24, 2023
    Applicant: Altria Client Services LLC
    Inventor: Loi Ying LIU
  • Patent number: 11684088
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: June 27, 2023
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventor: Loi Ying Liu
  • Patent number: 11678407
    Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: June 13, 2023
    Assignee: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Patent number: 11666100
    Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: June 6, 2023
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Raymond W. Lau, Eric Hawes, Loi Ying Liu
  • Publication number: 20230043467
    Abstract: A control device for controlling operation of a vaping apparatus. The control device comprises control circuitry to control activation of the vaping source, measurement circuitry to obtain a temperature-dependent parameter of the vaping source, and memory circuitry for data storage. The control device is configured to determine the ambient temperature, to obtain the parameter at the ambient temperature as an initial parameter, to set and store a target parameter for stopping activation of the vaping source, and to stop activation of the vaping source when the target parameter has been reached.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 9, 2023
    Inventor: Loi Ying Liu
  • Publication number: 20210345680
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Applicant: Altria Client Services LLC
    Inventor: Loi Ying LIU
  • Patent number: 11103011
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 31, 2021
    Assignee: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Publication number: 20210212381
    Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 15, 2021
    Applicant: Altria Client Services LLC
    Inventors: Raymond W. LAU, Eric Hawes, Loi Ying Liu
  • Publication number: 20210212380
    Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 15, 2021
    Applicant: Altria Client Services LLC
    Inventors: Raymond W. LAU, Eric HAWES, Loi Ying LIU
  • Publication number: 20200329769
    Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.
    Type: Application
    Filed: May 26, 2020
    Publication date: October 22, 2020
    Applicant: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Patent number: 10694782
    Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 30, 2020
    Assignee: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Publication number: 20200187557
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Application
    Filed: January 13, 2020
    Publication date: June 18, 2020
    Applicant: Altria Client Services LLC
    Inventor: Loi Ying LIU
  • Patent number: 10568363
    Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 25, 2020
    Assignee: Altria Client Services LLC
    Inventor: Loi Ying Liu
  • Publication number: 20190387804
    Abstract: An electronic smoke comprises a puff detection sub-assembly module. The puff detection sub-assembly comprises a first conductive surface, a second conductive surface and an insulated ring spacer separating the first and the second conductive surfaces at an effective separation distance. The first conductive surface, the second conductive surface and the insulated ring spacer are housed inside a metallic can. The first conductive surface is electrically connected to the metal can by a first conductive ring which is disposed between the first conductive surface and a ceiling portion of the metal can. The second conductive surface is electrically connected to an output terminal through a second conductive ring, the second conductive ring elevating the puff detection sub-assembly above a floor portion of the metal can and urging the first conductive ring against a ceiling portion of the metal can.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Applicant: Altria Client Services LLC
    Inventor: LOI YING LIU
  • Patent number: 10420374
    Abstract: An electronic smoke comprises a puff detection sub-assembly module. The puff detection sub-assembly comprises a first conductive surface, a second conductive surface and an insulated ring spacer separating the first and the second conductive surfaces at an effective separation distance. The first conductive surface, the second conductive surface and the insulated ring spacer are housed inside a metallic can. The first conductive surface is electrically connected to the metal can by a first conductive ring which is disposed between the first conductive surface and a ceiling portion of the metal can. The second conductive surface is electrically connected to an output terminal through a second conductive ring, the second conductive ring elevating the puff detection sub-assembly above a floor portion of the metal can and urging the first conductive ring against a ceiling portion of the metal can.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: September 24, 2019
    Assignee: Altria Client Services LLC
    Inventor: Loi Ying Liu