Patents by Inventor David Luo

David Luo 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: 12752068
    Abstract: A frame assembly for a ventilator to deliver gas includes: a frame with a first interface set on the patient's forehead, a second interface near a nasal side of the patient, and a hollow tube; wing elements, to connect to a headgear to secure the frame on the patient's face, having a first wing element and a second wing element. The hollow tube extends from the patient's first nasal side, ascends towards the first temporal region, further rises to the forehead, then extends to the second temporal region and reaches the second nasal side, to form a contour that at least partially encircles the patient's eyes and nose. A support portion, set on an inner wall of the hollow tube, is to prevent the gas delivery device from bottoming out.
    Type: Grant
    Filed: December 14, 2023
    Date of Patent: October 6, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12752070
    Abstract: A connector can be installed on the frame of a mask assembly used for the treatment of sleep apnea. This connector can be detachably connectable to a mask and an elbow, making it compatible with various masks and elbows. The commonality of the connector offers more choices for patients. While ensuring effective exhaust, the connector is also easy to clean, reducing the risk of patients getting infections from mold and pathogens. The connector includes a first interface end, a second interface end, and an annular channel to connect to the first interface end and the second interface end. The axis of the connector coincides with the axis of the gas outlet of the elbow. The connector passes through the central opening of the frame and is securely connected to the frame.
    Type: Grant
    Filed: December 14, 2023
    Date of Patent: October 6, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12751852
    Abstract: A nasal dilation respiratory device and system configured to be attached to a user's nasal region to achieve nasal cavity dilation. The device comprises a support member having two end portions, an intermediate portion, and at least one attachment surface, and at least one connector including a first portion and a second portion. The first portion is attached to lateral regions of the user's nose, and the second portion is detachably connected to the attachment surface. The support member applies an outward force to the nasal alar through its end portions to expand the nasal cavity. The connection mechanism may include a hook-and-loop structure, and the support member may be arcuate, arch-shaped, or linear. The device features simple structure, stable wearing, effective dilation, and strong adaptability, suitable for improving nasal airflow and relieving nasal congestion and snoring.
    Type: Grant
    Filed: August 29, 2025
    Date of Patent: October 6, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Publication number: 20260295183
    Abstract: A noise-reducing air passage device and its components for use in ventilator systems, including a housing with at least one inlet, at least one outlet, an inner wall, and an outer wall. The space enclosed by the inner wall of the housing forms a gas passage including at least one chamber to provide a space for gas accumulation and flow. A blower, the core component to provide positive pressure gas to the device, is secured within one of the at least one chamber. The gas passage also includes a ventilation component to divide the gas and streamline turbulent airflow. The ventilation component is among the noise-reducing components, which also include a support component to provide support and damp vibrations for the blower and an inlet component provided at the inlet.
    Type: Application
    Filed: June 3, 2026
    Publication date: October 1, 2026
    Inventor: David LUO
  • Patent number: 12740886
    Abstract: An adjustable nasal dilator designed to fit on a patient's nose and apply an outward expansion force to enhance airflow through the nasal passages. The device includes a supporting member, a fitting assembly, and an adjusting assembly. The supporting member has at least two opposing ends configured to laterally fit against both sides of the patient's nose. The fitting assembly includes first connecting portions attached to the nose and second connecting portions attached to the two ends of the supporting member, which mutual engage during use. The adjusting assembly allows the user to independently control the expansion level of the device, representing a major innovation over existing products. Through its adjusting mechanism, the adjusting assembly regulates a tensioning member to vary the angle of the left and right ends of the supporting member.
    Type: Grant
    Filed: October 31, 2025
    Date of Patent: September 22, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12741113
    Abstract: A headgear for use in the Positive Airway Pressure field includes an inner layer, a bonding layer, a padding layer, film layers, and an adhesive. The inner layer is configured to be at least partially in contact with a patient's skin during use, while the bonding layer is configured to adhere an outer side of the headgear, which comes into contact with the air, to a fixed part by folding the headgear, thereby tightening or loosening the headgear. The padding layer, placed between the inner layer and the bonding layer, increases thickness. The film layers are provided between the inner layer and the padding layer, as well as between the padding layer and the bonding layer. The adhesive is configured to bond the layers together. The headgear has at least three layers and is made of at least two types of textile materials.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: September 22, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: 12714811
    Abstract: A noise-reducing respiratory device configured to improve or treat respiratory system-related disorders such as sleep apnea. The device includes a noise-reducing gas passage located inside a casing of the device, and is connected to the casing. The casing of the respiratory device also has at least one air intake and at least one air outlet. The air intake is configured to receive breathable gas into the chambers of the noise-reducing gas passage. The air outlet is configured on one side to communicate with an outlet of the blower, and on the other side, it connects to a breathing hose. Additionally, electronic components and a soundproofing material are provided between the noise-reducing gas passage and the casing of the device. Furthermore, there is no foam present where the internal gas flows through the respiratory device.
    Type: Grant
    Filed: August 1, 2025
    Date of Patent: August 25, 2026
    Assignee: WALLENBERG UNION LLC
    Inventor: David Luo
  • Patent number: 12714810
    Abstract: A noise-reducing gas passage device with a resonant chamber, including a casing with an air intake and air outlet, which forms the resonant chamber and other chambers other than the resonant chamber. The other chambers may consist of a single chamber or multiple chambers. The other chambers including multiple chambers have a first chamber and a second chamber. The resonant chamber serves as the primary noise-reducing structure within the gas passage device, configured to be a cavity formed by the interior space of the casing. The noise-reducing structure also includes a neck, configured to communicate the resonant chamber with the other chambers, facilitating the transmission of sound waves into the resonant chamber for energy conversion. By controlling the position of the resonant chamber and the parameters of both the resonant chamber and the neck, maximal noise reduction in the noise-reducing gas passage is achieved.
    Type: Grant
    Filed: July 26, 2024
    Date of Patent: August 25, 2026
    Assignee: WALLENBERG UNION LLC
    Inventor: David Luo
  • Publication number: 20260224831
    Abstract: A gas passage for use in a PAP device configured to provide pressurized gas to a patient, including a passage casing with an air intake and an air outlet. The casing is configured to encompass and accommodate internal components and forms a chamber inside, where the chamber is configured to facilitate the flow and accumulation of gas. A blower is provided within the chamber to pressurize and output the gas. The internal components of the noise-reducing gas passage include noise reduction components configured to attenuate the noise of the gas entering the noise-reducing gas passage. These noise reduction components include a ventilation component, an intake pipe, and a flexible component at the air intake. Additionally, this disclosure specifies scientific and precise data requirements for the internal structure and positioning of the blower and noise-reducing components within the noise-reducing gas passage to achieve effective and excellent noise reduction.
    Type: Application
    Filed: March 27, 2026
    Publication date: August 6, 2026
    Applicant: WALLENBERG UNION LLC
    Inventor: David LUO
  • Patent number: D1142955
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: August 18, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1142958
    Type: Grant
    Filed: April 15, 2025
    Date of Patent: August 18, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1146015
    Type: Grant
    Filed: July 4, 2024
    Date of Patent: September 1, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1146941
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: September 8, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1147270
    Type: Grant
    Filed: August 26, 2024
    Date of Patent: September 8, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1147575
    Type: Grant
    Filed: January 14, 2026
    Date of Patent: September 8, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1149199
    Type: Grant
    Filed: January 14, 2026
    Date of Patent: September 22, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1153663
    Type: Grant
    Filed: April 23, 2024
    Date of Patent: October 13, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1153670
    Type: Grant
    Filed: November 28, 2025
    Date of Patent: October 13, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1153671
    Type: Grant
    Filed: November 28, 2025
    Date of Patent: October 13, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo
  • Patent number: D1153674
    Type: Grant
    Filed: December 3, 2025
    Date of Patent: October 13, 2026
    Assignee: DCSTAR INC
    Inventor: David Luo