Patents by Inventor Yi-Ping Chang

Yi-Ping Chang 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: 12318535
    Abstract: The present disclosure relates to a microfluidic vaporizer, an aerosol delivery device that may include such vaporizer, and methods for forming an aerosol. A microfluidic vaporizer can comprise a substrate that defines: a reservoir configured to hold a liquid; a heater adapted to vaporize the liquid; and a capillary channel configured for movement of the liquid from the reservoir to the heater. An aerosol delivery device can comprise a shell and a microfluidic vaporizer. The microfluidic vaporizer and aerosol delivery device can be used for forming aerosols with precise and reproducible compositions.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: June 3, 2025
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Stephen Benson Sears, Michael F. Davis, Karen V. Taluskie, Yi-ping Chang, Eric Taylor Hunt, Andries Don Sebastian
  • Publication number: 20250151794
    Abstract: The present invention provides a conductive substrate useful for Joule heating, such as in an electronic smoking article. Particularly, the invention provides a resistive heating element formed of a conductive substrate. The conductive substrate comprises an electrically conductive material and a carbonaceous additive, such as a binder material. The conductive substrate is carbonized in that it is subjected to calcining conditions to effectively reduce the carbonaceous additive to its carbon skeleton. It has been found that such carbonized substrate has surprisingly improved resistance properties in relation a substrate of the same formulation that is not carbonized. The carbonized substrate can include an aerosol precursor material. The formed resistive heating element can be included in an electronic smoking article to simultaneously provide resistive heating and aerosol formation with a single, unitary component.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 15, 2025
    Inventors: David William Griffith, JR., Yi-Ping Chang, Calvin W. Henderson, Ricky Lee Montgomery, Walter Charles Liebscher, II, Chandra Kumar Banerjee, Paul E. Braxton, Stephen Benson Sears, Kenneth Allen Beard, Timothy Brian Nestor, Balager Ademe, Frederic Philippe Ampolini, Dennis Lee Potter
  • Publication number: 20250144332
    Abstract: The present disclosure relates to a microfluidic vaporizer, an aerosol delivery device that may include such vaporizer, and methods for forming an aerosol. A microfluidic vaporizer can comprise a substrate that defines: a reservoir configured to hold a liquid; a heater adapted to vaporize the liquid; and a capillary channel configured for movement of the liquid from the reservoir to the heater. An aerosol delivery device can comprise a shell and a microfluidic vaporizer. The microfluidic vaporizer and aerosol delivery device can be used for forming aerosols with precise and reproducible compositions.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 8, 2025
    Inventors: Stephen Benson Sears, Michael F. Davis, Karen V. Taluskie, Yi-ping Chang, Eric Taylor Hunt, Andries Don Sebastian
  • Publication number: 20250064127
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides a heating member that can be formed of a heating element conformed to a heater substrate configured as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size. In some embodiments, the disclosure provides methods of forming an aerosol delivery device, which can include providing a shell, providing a heating member formed of a heating element conformed to a substrate, configuring the heating member as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size, and inserting the heating member within the shell.
    Type: Application
    Filed: November 8, 2024
    Publication date: February 27, 2025
    Applicant: R.J. REYNOLDS TOBACCO COMPANY
    Inventors: Karen V. Taluskie, Stephen Benson Sears, Eric Taylor Hunt, William Robert Collett, Yi-ping Chang, Kristen Dodds Weight, Jeffrey A. Karg, Graham P. Eacock, Matthew C. Ebbs, Robert C. Uschold, Walker MacLaughlin Sloan, III
  • Publication number: 20240306706
    Abstract: The present disclosure provides thermal energy absorbers for use in smoking articles. In an example embodiment, the smoking article may comprise an outer wrap circumscribing at least a portion of the smoking article, wherein the smoking article is defined by an upstream lighting end and a downstream mouth end, a carbon heat source positioned proximate the lighting end, a tobacco material positioned downstream of the carbon heat source and spatially separated from the mouth end of the smoking article, and a thermal energy absorber at least partially positioned between the tobacco material and the carbon heat source.
    Type: Application
    Filed: May 24, 2024
    Publication date: September 19, 2024
    Inventors: Vahid Hejazi, Yi-Ping Chang, Luis Monsalud, Darrell Williams, Billy Conner, Karen Cleckley
  • Patent number: 12022859
    Abstract: The present disclosure provides thermal energy absorbers for use in smoking articles. In an example embodiment, the smoking article may comprise an outer wrap circumscribing at least a portion of the smoking article, wherein the smoking article is defined by an upstream lighting end and a downstream mouth end, a carbon heat source positioned proximate the lighting end, a tobacco material positioned downstream of the carbon heat source and spatially separated from the mouth end of the smoking article, and a thermal energy absorber at least partially positioned between the tobacco material and the carbon heat source.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: July 2, 2024
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Vahid Hejazi, Yi-Ping Chang, Luis Monsalud, Darrell Williams, Billy T. Conner, Karen Cleckley
  • Publication number: 20240099375
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides a heating member that can be formed of a heating element conformed to a heater substrate configured as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size. In some embodiments, the disclosure provides methods of forming an aerosol delivery device, which can include providing a shell, providing a heating member formed of a heating element conformed to a substrate, configuring the heating member as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size, and inserting the heating member within the shell.
    Type: Application
    Filed: December 11, 2023
    Publication date: March 28, 2024
    Applicant: RAI STRATEGIC HOLDINGS, INC.
    Inventors: Karen V. Taluskie, Stephen Benson Sears, Eric Taylor Hunt, William Robert Collett, Yi-ping Chang, Kristen Dodds Weight, Jeffrey A. Karg, Graham P. Eacock, Matthew C. Ebbs, Robert C. Uschold, Walker MacLaughlin Sloan, III
  • Publication number: 20240065330
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides a heating member that can be formed of a heating element conformed to a heater substrate configured as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size. In some embodiments, the disclosure provides methods of forming an aerosol delivery device, which can include providing a shell, providing a heating member formed of a heating element conformed to a substrate, configuring the heating member as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size, and inserting the heating member within the shell.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: RAI STRATEGIC HOLDINGS, INC
    Inventors: Karen V. Taluskie, Stephen Benson Sears, Eric Taylor Hunt, William Robert Collett, Yi-ping Chang, Kristen Dodds Weight, Jeffrey A. Karg, Graham P. Eacock, Matthew C. Ebbs, Robert C. Uschold, Walker MacLaughlin Sloan, III
  • Patent number: 11793242
    Abstract: A system for testing a vapor product with a mouthpiece that has a non-circular cross section includes an adaptor coupled to a neck portion of a filter pad holder. The adaptor includes a nose to receive the neck portion and an adaptor body coupled to the nose. An opening is defined by the adaptor body and the nose, the opening extending through the adaptor body and the nose and configured to receive the neck portion. A sealing member is configured to be received by the adaptor and the filter pad holder. The sealing member includes a sealing member nose configured to be received by the neck portion, and a sealing member body coupled to the sealing member nose and configured to be received by the opening. The sealing member body defines an orifice, the orifice extending through the sealing member body.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 24, 2023
    Assignee: RAI STRATEGIC HOLDINGS, INC.
    Inventors: Jeffrey Sean Smith, Robert Underly, Jason M. Short, Cassidy McMahan, Yi-Ping Chang, Bradley Brown
  • Patent number: 11602175
    Abstract: The present invention provides a conductive substrate useful for Joule heating, such as in an electronic smoking article. Particularly, the invention provides a resistive heating element formed of a conductive substrate. The conductive substrate comprises an electrically conductive material and a carbonaceous additive, such as a binder material. The conductive substrate is carbonized in that it is subjected to calcining conditions to effectively reduce the carbonaceous additive to its carbon skeleton. It has been found that such carbonized substrate has surprisingly improved resistance properties in relation a substrate of the same formulation that is not carbonized. The carbonized substrate can include an aerosol precursor material. The formed resistive heating element can be included in an electronic smoking article to simultaneously provide resistive heating and aerosol formation with a single, unitary component.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: March 14, 2023
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: David William Griffith, Jr., Yi-Ping Chang, Calvin W. Henderson, Ricky Lee Montgomery, Walter Charles Liebscher, II, Chandra Kumar Banerjee, Paul E. Braxton, Stephen Benson Sears, Kenneth Allen Beard, Timothy Brian Nestor, Balager Ademe, Frederic Philippe Ampolini, Dennis Lee Potter
  • Publication number: 20220071307
    Abstract: A system for testing a vapor product with a mouthpiece that has a non-circular cross section includes an adaptor coupled to a neck portion of a filter pad holder. The adaptor includes a nose to receive the neck portion and an adaptor body coupled to the nose. An opening is defined by the adaptor body and the nose, the opening extending through the adaptor body and the nose and configured to receive the neck portion. A sealing member is configured to be received by the adaptor and the filter pad holder. The sealing member includes a sealing member nose configured to be received by the neck portion, and a sealing member body coupled to the sealing member nose and configured to be received by the opening. The sealing member body defines an orifice, the orifice extending through the sealing member body.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: RAI STRATEGIC HOLDINGS, INC.
    Inventors: Jeffrey Sean SMITH, Robert UNDERLY, Jason M. SHORT, Cassidy MCMAHAN, Yi-Ping CHANG, Bradley BROWN
  • Patent number: 11246344
    Abstract: The present invention provides a conductive substrate useful for Joule heating, such as in an electronic smoking article. Particularly, the invention provides a resistive heating element formed of a conductive substrate. The conductive substrate comprises an electrically conductive material and a carbonaceous additive, such as a binder material. The conductive substrate is carbonized in that it is subjected to calcining conditions to effectively reduce the carbonaceous additive to its carbon skeleton. It has been found that such carbonized substrate has surprisingly improved resistance properties in relation a substrate of the same formulation that is not carbonized. The carbonized substrate can include an aerosol precursor material. The formed resistive heating element can be included in an electronic smoking article to simultaneously provide resistive heating and aerosol formation with a single, unitary component.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 15, 2022
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: David William Griffith, Jr., Yi-Ping Chang, Calvin W. Henderson, Ricky Lee Montgomery, Walter Charles Liebscher, II, Chandra Kumar Banerjee, Paul E. Braxton, Stephen Benson Sears, Kenneth Allen Beard, Timothy Brian Nestor, Balager Ademe, Frederic Philippe Ampolini, Dennis Lee Potter
  • Publication number: 20220023555
    Abstract: The present disclosure relates to a microfluidic vaporizer, an aerosol delivery device that may include such vaporizer, and methods for forming an aerosol. A microfluidic vaporizer can comprise a substrate that defines: a reservoir configured to hold a liquid; a heater adapted to vaporize the liquid; and a capillary channel configured for movement of the liquid from the reservoir to the heater. An aerosol delivery device can comprise a shell and a microfluidic vaporizer. The microfluidic vaporizer and aerosol delivery device can be used for forming aerosols with precise and reproducible compositions.
    Type: Application
    Filed: October 6, 2021
    Publication date: January 27, 2022
    Inventors: Stephen Benson Sears, Michael F. Davis, Karen V. Taluskie, Yi-ping Chang, Eric Taylor Hunt, Andries Don Sebastian
  • Publication number: 20210385909
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides devices configured for vaporization of an aerosol precursor composition through radiant heating. The radiant heat source may be a laser diode or further element suitable for providing electromagnetic radiation, and heating may be carried out within a radiation-trapping chamber. In some embodiments, an interior of such chamber may be configured as a black body or as a white body.
    Type: Application
    Filed: August 25, 2021
    Publication date: December 9, 2021
    Inventors: Yi-ping Chang, Michael F. Davis, Stephen Benson Sears, Karen V. Taluskie, Susan K. Pike
  • Patent number: 11191306
    Abstract: A system for testing a vapor product with a mouthpiece that has a non-circular cross section includes an adaptor coupled to a neck portion of a filter pad holder. The adaptor includes a nose to receive the neck portion and an adaptor body coupled to the nose. An opening is defined by the adaptor body and the nose, the opening extending through the adaptor body and the nose and configured to receive the neck portion. A sealing member is configured to be received by the adaptor and the filter pad holder. The sealing member includes a sealing member nose configured to be received by the neck portion, and a sealing member body coupled to the sealing member nose and configured to be received by the opening. The sealing member body defines an orifice, the orifice extending through the sealing member body.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: December 7, 2021
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Jeffrey Sean Smith, Robert Underly, Jason M. Short, Cassidy McMahan, Yi-Ping Chang, Bradley Brown
  • Patent number: 11160939
    Abstract: The present disclosure relates to a microfluidic vaporizer, an aerosol delivery device that may include such vaporizer, and methods for forming an aerosol. A microfluidic vaporizer can comprise a substrate that defines: a reservoir configured to hold a liquid; a heater adapted to vaporize the liquid; and a capillary channel configured for movement of the liquid from the reservoir to the heater. An aerosol delivery device can comprise a shell and a microfluidic vaporizer. The microfluidic vaporizer and aerosol delivery device can be used for forming aerosols with precise and reproducible compositions.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 2, 2021
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Stephen Benson Sears, Michael F. Davis, Karen V. Taluskie, Yi-Ping Chang, Eric Taylor Hunt, Andries Don Sebastian
  • Patent number: 11134544
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides devices configured for vaporization of an aerosol precursor composition through radiant heating. The radiant heat source may be a laser diode or further element suitable for providing electromagnetic radiation, and heating may be carried out within a radiation-trapping chamber. In some embodiments, an interior of such chamber may be configured as a black body or as a white body.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: September 28, 2021
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Yi-Ping Chang, Michael F. Davis, Stephen Benson Sears, Karen V. Taluskie, Susan K. Pike
  • Publication number: 20210112860
    Abstract: The present invention provides a conductive substrate useful for Joule heating, such as in an electronic smoking article. Particularly, the invention provides a resistive heating element formed of a conductive substrate. The conductive substrate comprises an electrically conductive material and a carbonaceous additive, such as a binder material. The conductive substrate is carbonized in that it is subjected to calcining conditions to effectively reduce the carbonaceous additive to its carbon skeleton. It has been found that such carbonized substrate has surprisingly improved resistance properties in relation a substrate of the same formulation that is not carbonized. The carbonized substrate can include an aerosol precursor material. The formed resistive heating element can be included in an electronic smoking article to simultaneously provide resistive heating and aerosol formation with a single, unitary component.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 22, 2021
    Inventors: David William Griffith, JR., Yi-ping Chang, Calvin W. Henderson, Ricky Lee Montgomery, Walter Charles Liebscher, II, Chandra Kumar Banerjee, Paul E. Braxton, Stephen Benson Sears, Kenneth Allen Beard, Timothy Brian Nestor, Balager Ademe, Frederic Philippe Ampolini, Dennis Lee Potter
  • Publication number: 20210084978
    Abstract: The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides a heating member that can be formed of a heating element conformed to a heater substrate configured as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size. In some embodiments, the disclosure provides methods of forming an aerosol delivery device, which can include providing a shell, providing a heating member formed of a heating element conformed to a substrate, configuring the heating member as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size, and inserting the heating member within the shell.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Applicant: RAI STRATEGIC HOLDINGS, INC.
    Inventors: Karen V. Taluskie, Stephen Benson Sears, Eric Taylor Hunt, William Robert Collett, Yi-ping Chang, Kristen Dodds Weight, Jeffrey A. Karg, Graham P. Eacock, Matthew C. Ebbs, Robert C. Uschold, Walker MacLaughlin Sloan, III
  • Publication number: 20210015171
    Abstract: The present disclosure provides thermal energy absorbers for use in smoking articles. In an example embodiment, the smoking article may comprise an outer wrap circumscribing at least a portion of the smoking article, wherein the smoking article is defined by an upstream lighting end and a downstream mouth end, a carbon heat source positioned proximate the lighting end, a tobacco material positioned downstream of the carbon heat source and spatially separated from the mouth end of the smoking article, and a thermal energy absorber at least partially positioned between the tobacco material and the carbon heat source.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 21, 2021
    Inventors: Vahid Hejazi, Yi-Ping Chang, Luis Monsalud, Darrell Williams, Billy T. Conner, Karen Cleckley