Patents by Inventor David Dai

David Dai 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: 20260149181
    Abstract: An antenna assembly may include: at least one transparent ply defining an outer perimeter; a transparent coating arranged on the transparent ply, the coating defining a peripheral edge arranged inwardly of the outer perimeter; at least one antenna feed layer arranged on the at least one transparent ply proximate to the peripheral edge and arranged a distance away from the transparent coating; and an unbalanced transmission line. The transparent ply, transparent coating, and antenna feed layer may be arranged in a window opening. The peripheral edge and an end of the window opening may define an antenna slot. The outer conductor and center conductor may be electrically connected to interfacing ends of the antenna slot. The at least one feed layer may be further arranged across the antenna slot from the end of the window opening.
    Type: Application
    Filed: October 2, 2025
    Publication date: May 28, 2026
    Inventor: David Dai
  • Patent number: 12640482
    Abstract: A band-pass filter may include a first electrical conductor extending a first distance; a second electrical conductor extending from the first electrical conductor, the second electrical conductor may extend a second distance at least partially parallel to the first distance; and a third electrical conductor extending a third distance parallel to and between the first electrical conductor and the second electrical conductor. The first and third electrical conductors may at least partially overlap along a first length, and the first and third electrical conductors may be electromagnetically coupled at least along the first length. The second and third electrical conductors may at least partially overlap along a second length, and the second and third electrical conductors may be electromagnetically coupled at least along the second length. The first length may correspond to a first frequency. The second length may correspond to a second frequency.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: May 26, 2026
    Assignee: Pittsburgh Glass Works LLC
    Inventor: David Dai
  • Patent number: 12633644
    Abstract: A windshield having an outer transparent ply that defines an inner surface and an outer surface oppositely disposed from the inner surface, an inner transparent ply that defines an outer surface and an inner surface oppositely disposed from the outer surface, an interlayer disposed between the inner surface of the outer transparent ply and the inner surface of the inner transparent ply, a circularly polarized antenna disposed on the outer surface of the inner transparent ply, an unidirectional antenna disposed on the inner surface of the outer transparent ply and the outer surface of the inner transparent ply, and a wideband antenna disposed on the outer surface of the inner transparent ply.
    Type: Grant
    Filed: August 8, 2024
    Date of Patent: May 19, 2026
    Assignee: Vitro Automotive Holdings Corporation
    Inventor: David Dai
  • Publication number: 20260007647
    Abstract: Provided are methods and compositions for treating cancers in patients carrying an IDH1 mutation using an inhibitor of a mutant IDH1 enzyme.
    Type: Application
    Filed: March 18, 2025
    Publication date: January 8, 2026
    Inventors: Samuel V. Agresta, Hua Yang, Bin Fan, David Dai
  • Publication number: 20250289895
    Abstract: Formulations and dosage regimens of anti-Blood Dendritic Cell Antigen 2 (BDCA2) antibodies are provided. These formulations and dosage regimens find use in the treatment of BDCA2-associated disorders such as systematic lupus erythematosus, cutaneous lupus erythematosus, and discoid lupus erythematosus, and cytokine release syndrome.
    Type: Application
    Filed: February 21, 2025
    Publication date: September 18, 2025
    Inventors: Mark R.H. Krebs, David Dai, Shantanu Sule, Dania Mounir Rabah, David Martin
  • Publication number: 20250196807
    Abstract: An inductive coupled window heating system and method having a conductive layer is disclosed. The conductive layer includes at least one slit around the peripheral edges of a targeted heating zone. The slits guide induced eddy currents from areas having high current density to areas having low current density to provide uniform heating in a targeted heating zone. An inductive coupled window heating system having a conductive layer with rough surfaces is also disclosed. Conductive layers with a rough surface increase the eddy current path length and increase the effective surface area or magnetic flux that leads to a higher metallization loss and more heat transferred to the heating zone on the window.
    Type: Application
    Filed: December 17, 2024
    Publication date: June 19, 2025
    Inventor: David Dai
  • Publication number: 20250055174
    Abstract: A windshield having an outer transparent ply that defines an inner surface and an outer surface oppositely disposed from the inner surface, an inner transparent ply that defines an outer surface and an inner surface oppositely disposed from the outer surface, an interlayer disposed between the inner surface of the outer transparent ply and the inner surface of the inner transparent ply, a circularly polarized antenna disposed on the outer surface of the inner transparent ply, an unidirectional antenna disposed on the inner surface of the outer transparent ply and the outer surface of the inner transparent ply, and a wideband antenna disposed on the outer surface of the inner transparent ply.
    Type: Application
    Filed: August 8, 2024
    Publication date: February 13, 2025
    Inventor: David Dai
  • Publication number: 20230291109
    Abstract: A band-pass filter may include a first electrical conductor extending a first distance; a second electrical conductor extending from the first electrical conductor, the second electrical conductor may extend a second distance at least partially parallel to the first distance; and a third electrical conductor extending a third distance parallel to and between the first electrical conductor and the second electrical conductor. The first and third electrical conductors may at least partially overlap along a first length, and the first and third electrical conductors may be electromagnetically coupled at least along the first length. The second and third electrical conductors may at least partially overlap along a second length, and the second and third electrical conductors may be electromagnetically coupled at least along the second length. The first length may correspond to a first frequency. The second length may correspond to a second frequency.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Inventor: David Dai
  • Patent number: 11569580
    Abstract: An antenna suitable for use in the 5 GHz WLAN/Wi-Fi and DSRC frequency band is integrated with a vehicle window that is includes outer and inner transparent plies bonded together by an interlayer. The inner transparent ply and the interlayer serve as an antenna substrate. A first conductive layer is formed on the inner surface of the outer transparent ply and a second conductive layer that defines a coupling slot is formed on the outer surface of the inner transparent ply. The antenna may be excited by a coaxial cable or a microstrip line that crosses the coupling slot.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: January 31, 2023
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 11515614
    Abstract: A slot antenna in a heatable vehicle glazing established between the heating bus bar, bus bar extensions and the peripheral edge of an IR reflective coating. The antenna slot may be fed directly by a voltage source, a current source, or a coupled coplanar line at locations that excite both fundamental and higher order modes for multiband antenna applications. The slot antenna may be established between split bus bars or split bus bar extensions that limit heat loss and improve antenna efficiency. Multiple antennas can be integrated into the heatable glazing for multiband applications and/or diversity antenna systems.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: November 29, 2022
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 11444897
    Abstract: A system and method for controlling access to a message after communication. A sender sends an encrypted message to a recipient. The sender also sends an encryption key and the identity of the recipient to a services component. The recipient authenticates its access rights with the services component to obtain the encryption key. The key is held for a period of time for the recipient to access the encrypted message. The recipient may re-authenticate with the services component to again obtain the key to subsequently access the message. The sender may revoke or reinstate the receiver's access to the message by updating the service component.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: September 13, 2022
    Assignee: CRYPTOMILL INC.
    Inventors: Nandini Jolly, Chris Batty, Canute Serrao, Deepu Filji, David Dai
  • Publication number: 20220213546
    Abstract: A method for detecting interactions between elements within one or more DNA molecules within a cell, wherein the elements are not adjacent in the primary DNA sequence, the method comprising: a) providing a cell in which elements within one or more DNA molecules that are in close proximity are cross-linked; b) simultaneously lysing the cell and mechanically fragmenting the DNA molecules within the cell; c) proximity ligating the one or more fragmented DNA molecules; d) reversing the crosslinks in the ligated DNA molecules; e) sequencing the ligated DNA molecules; and f) analysing the sequencing data to detect interactions between elements within the one or more DNA molecules within the cell.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 7, 2022
    Applicant: Oxford Nanopore Technologies Plc
    Inventors: David Dai, Matthew Pendleton
  • Publication number: 20210234254
    Abstract: A slot antenna in a heatable vehicle glazing established between the heating bus bar, bus bar extensions and the peripheral edge of an IR reflective coating. The antenna slot may be fed directly by a voltage source, a current source, or a coupled coplanar line at locations that excite both fundamental and higher order modes for multiband antenna applications. The slot antenna may be established between split bus bars or split bus bar extensions that limit heat loss and improve antenna efficiency. Multiple antennas can be integrated into the heatable glazing for multiband applications and/or diversity antenna systems.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 11063213
    Abstract: A method includes depositing a bottom electrode layer, a resistance switching element layer, and a top electrode layer over a first dielectric layer; etching the top electrode layer and the resistance switching element layer to form a resistance switching element over the bottom electrode layer and a top electrode over the resistance switching element; depositing a metal-containing compound layer over the top electrode, the resistance switching element, and the bottom electrode layer; and etching the metal-containing compound layer and the bottom electrode layer to form a bottom electrode over the first dielectric layer.
    Type: Grant
    Filed: October 26, 2019
    Date of Patent: July 13, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Wei Lu, Hsi-Wen Tien, Wei-Hao Liao, David Dai, Chung-Ju Lee
  • Patent number: 11050018
    Abstract: A memory device includes a bottom electrode, a resistance switching element, a top electrode, a first spacer, and a metal-containing compound layer. The resistance switching element is over the bottom electrode. The top electrode is over the resistance switching element. The first spacer is disposed along a sidewall of the resistance switching element. The metal-containing compound layer is disposed along a sidewall of the first spacer, in which the first spacer is between the metal-containing compound layer and the resistance switching element.
    Type: Grant
    Filed: October 26, 2019
    Date of Patent: June 29, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Wei Lu, Hsi-Wen Tien, Wei-Hao Liao, David Dai, Chung-Ju Lee
  • Publication number: 20210175628
    Abstract: An antenna suitable for use in the 5 GHz WLAN/Wi-Fi and DSRC frequency band is integrated with a vehicle window that is includes outer and inner transparent plies bonded together by an interlayer. The inner transparent ply and the interlayer serve as an antenna substrate. A first conductive layer is formed on the inner surface of the outer transparent ply and a second conductive layer that defines a coupling slot is formed on the outer surface of the inner transparent ply. The antenna may be excited by a coaxial cable or a microstrip line that crosses the coupling slot.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 10923795
    Abstract: A slot antenna in a vehicle glazing established between the surface of the vehicle portal for the glazing and the peripheral edge of an IR reflective coating that has a bus bar over the coating edge. The antenna slot is fed directly by a voltage probe and/or a conductive line located in the slot and parallel to the bus bar. Multiple voltage probes and conductive lines can support respective antennas. A second conductive line is parallel and cooperates with the first conductive line to form a coupled coplanar line that links to the antenna slot. The longitudinal location of the links and the length of the coplanar lines are adjusted to excite multiple frequency modes. Multiple antennas can be used to broaden overall bandwidth or to add additional frequency modes.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 16, 2021
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 10847867
    Abstract: A vehicle glazing with a slot antenna between the vehicle portal and the peripheral edge of an IR reflective coating that includes a heating bus over the coating edge. The antenna slot may be fed directly by a voltage probe or a coupled coplanar line at a position to excite both fundamental and higher order modes for multiband antenna applications. A portion of the IR reflective coating may overlay the window frame at null positions of first higher order mode to tune the slot antenna to higher frequencies. Slot antenna resonant frequency may also be moved higher by separating the IR reflective coating into two coating panel with the lower coating panel connected to electrical ground by capacitive coupling. Multiple antennas can be fed at different locations for multiband applications and diversity antenna systems.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: November 24, 2020
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: D933008
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 12, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventors: Amy Deng, David Dai, Kevin Yang, Chris Qi, Jerry Tang
  • Patent number: D933009
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 12, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventors: Amy Deng, David Dai, Kevin Yang, Chris Qi, Jerry Tang