Patents by Inventor Kevin Nai Hong Chen

Kevin Nai Hong Chen 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).

  • Auto-feedback valve for a sleep apnea device
    Patent number: 10307562
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 4, 2019
    Assignee: FRESCA Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Auto-feedback valve for a sleep apnea device
    Patent number: 10272226
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: April 30, 2019
    Assignee: FRESCA MEDICAL, INC.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen