Patents by Inventor David Yu

David Yu 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: 20260001904
    Abstract: The present disclosure relates to methods and compounds for liquid phase oligonucleotide synthesis employing the use of small molecules with lipophilic groups. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the compounds described herein are also provided.
    Type: Application
    Filed: June 26, 2025
    Publication date: January 1, 2026
    Inventors: Gaomai YANG, Min XIE, Kuei Chien TANG, Hongrong YANG, Shengdong WANG, Ruiming ZOU, John Michael Cue, David Yu
  • Publication number: 20250356379
    Abstract: Disclosed herein are systems and methods for natural language processing for a call center. Audio data are received for at least a portion of a call between a call center representative and a call center user. An audio-to-text transcription of the call is generated upon processing the audio data. At least one generative model is applied to the transcription to obtain: a text summary of the call; answers to pre-defined questions relating to the customer and/or the call; and at least one assessment score of the call. In some cases, an electronic signal to trigger remedial action may be generated.
    Type: Application
    Filed: May 14, 2025
    Publication date: November 20, 2025
    Inventors: David CURRY, Megha JAIN, David YU, Jacy LEGAULT, Asif SHEIKH
  • Publication number: 20250320177
    Abstract: The present disclosure relates to methods and compounds for liquid phase oligonucleotide synthesis employing the use of small molecules with lipophilic groups. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the compounds described herein are also provided.
    Type: Application
    Filed: December 26, 2024
    Publication date: October 16, 2025
    Inventors: Gaomai YANG, Min XIE, Hongrong YANG, Shengdong WANG, Aldrich N.K. LAU, Ruiming ZOU, David YU
  • Publication number: 20250304331
    Abstract: A mold core for forming an injection molded article includes a first mold surface having a thread mold extending helically about a core axis for forming internal threading in a first portion of the molded article; and a second mold surface spaced radially apart from the first mold surface for forming a second portion spaced radially apart from the first portion and connected to the first portion by a connection portion. The second mold surface includes at least one rib mold feature for forming at least one ejection-assist rib of the second portion, the ejection-assist rib having a helical slide surface extending helically about the article axis. During an initial unscrewing rotation of the molded article relative to the mold core, the rib mold feature bears against the helical slide surface to urge the second portion axially away from the mold core during ejection of the molded article.
    Type: Application
    Filed: June 17, 2025
    Publication date: October 2, 2025
    Inventor: David Yu
  • Patent number: 12358692
    Abstract: An injection molded article includes: (a) an article first portion having internal threading extending helically about an article axis, the threading configured to be formed by a thread mold in a mold core; and (b) an article second portion spaced radially apart from the article first portion and connected to the article first portion by a connection portion. The article second portion has at least one ejection-assist rib configured to be formed by at least one rib mold feature in the mold core. The ejection-assist rib defines a helical slide surface extending helically about the article axis. During an initial unscrewing rotation of the molded article relative to the mold core, the rib mold feature of the mold core bears against the slide surface of the ejection-assist rib to urge the article second portion axially away from the mold core during ejection of the molded article from the mold core.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: July 15, 2025
    Assignee: Cap-Thin Molds Inc.
    Inventor: David Yu
  • Publication number: 20250034192
    Abstract: Embodiments of the present application relate to polymers used as polymeric polyvalent hubs for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polymers are also provided.
    Type: Application
    Filed: September 30, 2024
    Publication date: January 30, 2025
    Inventors: Gaomai Yang, Jingshe Song, Shengdong Wang, Yun-Chiao Yao, Hongrong Yang, David Yu, Aldrich N.K. Lau
  • Publication number: 20250027091
    Abstract: Embodiments of the present disclosure relate to lipid-PEGylated solid support and phosphoramidites derivatives, methods for preparing the same, and their uses in the delivery of oligonucleotide drugs to the cellular targets.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 23, 2025
    Inventors: Mufa Zou, David Yu, Aldrich N.K. Lau, Ruiming Zou, Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Allen Wong, Xiaojun Li
  • Patent number: 12180140
    Abstract: The present disclosure relates to methods and compounds for liquid phase oligonucleotide synthesis employing the use of small molecules with lipophilic groups. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the compounds described herein are also provided.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: December 31, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Gaomai Yang, Min Xie, Hongrong Yang, Shengdong Wang, Aldrich N. K. Lau, Ruiming Zou, David Yu
  • Patent number: 12134630
    Abstract: Embodiments of the present application relate to polymers used as polymeric polyvalent hubs for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polymers are also provided.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: November 5, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Gaomai Yang, Jingshe Song, Shengdong Wang, Yun-Chiao Yao, Hongrong Yang, David Yu, Aldrich N.K. Lau
  • Patent number: 12116382
    Abstract: Embodiments of the present application relate to functionalized N-acetylgalactosamine analogs, methods of making, and uses of the same. In particular, polyvalent N-acetylgalactosamine analogs may be prepared by utilizing a wide variety of linkers containing functional groups. These functionalized N-acetylgalactosamine analogs may be used in the preparation of targeted delivery of oligonucleotide-based therapeutics.
    Type: Grant
    Filed: November 27, 2023
    Date of Patent: October 15, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Ruiming Zou, Aldrich N. K. Lau, David Yu, Guijun Yu, Zhixia Li
  • Patent number: 12098371
    Abstract: Embodiments of the present disclosure relate to lipid-PEGylated solid support and phosphoramidites derivatives, methods for preparing the same, and their uses in the delivery of oligonucleotide drugs to the cellular targets.
    Type: Grant
    Filed: August 16, 2023
    Date of Patent: September 24, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Mufa Zou, David Yu, Aldrich N. K. Lau, Ruiming Zou, Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Allen Wong, Xiaojun Li
  • Publication number: 20240287120
    Abstract: Embodiments of the present application relate to functionalized N-acetylgalactosamine-analogs, methods of making, and uses of the same. In particular, mono or trivalent N-acetylgalactosamine analogs may be prepared by utilizing a wide variety of linkers containing functional groups. These functionalized N-acetylgalactosamine-analogs may be used in the preparation of targeted delivery of oligonucleotide-based therapeutics.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 29, 2024
    Inventors: Wing C. Poon, Xiaoyang Guan, David Yu, Ruiming Zou, Xiaojun Li, Michael Su, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Aldrich N.K. Lau
  • Patent number: 12065460
    Abstract: Embodiments of the present application relate to polymers used as polymeric polyvalent hub for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polyvalent hub are also provided.
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: August 20, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Gaomai Yang, Yun-Chiao Yao, David Yu, Aldrich N. K. Lau
  • Patent number: 12065516
    Abstract: Embodiments of the present application relate to porous polymeric beads solid support for use in oligonucleotide synthesis and the method of producing and using the same. Further embodiments relate to porous polymeric beads and method for preparing and using the same.
    Type: Grant
    Filed: October 9, 2023
    Date of Patent: August 20, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Jingshe Song, John Michael Cue, Yun-Chiao Yao, David Yu, Aldrich N. K. Lau
  • Patent number: 12054316
    Abstract: A cap for a container includes an annular tamper evident band with a generally rigid cylindrical frame having an upper ring and a plurality of ribs extending axially from the ring and spaced circumferentially apart about the ring. A plurality of retainer elements are supported by the frame, each retainer element connected at circumferentially opposed ends by resiliently flexible webs to adjacent ones of the ribs. The retainer elements are biased to a radially contracted position, in which the retainer elements protrude inwardly to engage an underside surface of a neck flange of the container. The retainer elements are movable to a radially expanded position in which the retainer elements can be advanced axially past the neck flange when installing the cap onto the container for the first time.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: August 6, 2024
    Assignee: CAP-THIN MOLDS INC.
    Inventor: David Yu
  • Publication number: 20240247023
    Abstract: Embodiments of the present application relate to functionalized N-acetylgalactosamine analogs, methods of making, and uses of the same. In particular, polyvalent N-acetylgalactosamine analogs may be prepared by utilizing a wide variety of linkers containing functional groups. These functionalized N-acetylgalactosamine analogs may be used in the preparation of targeted delivery of oligonucleotide-based therapeutics.
    Type: Application
    Filed: November 27, 2023
    Publication date: July 25, 2024
    Inventors: Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Ruiming Zou, Aldrich N.K. Lau, David Yu, Guijun Yu, Zhixia Li
  • Publication number: 20240228433
    Abstract: The present disclosure relates to methods and compounds for liquid phase oligonucleotide synthesis employing the use of small molecules with lipophilic groups. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the compounds described herein are also provided.
    Type: Application
    Filed: December 20, 2023
    Publication date: July 11, 2024
    Inventors: Gaomai YANG, Min XIE, Hongrong YANG, Shengdong WANG, Aldrich N.K. LAU, Ruiming ZOU, David YU
  • Patent number: 11993626
    Abstract: Embodiments of the present application relate to functionalized N-acetylgalactosamine-analogs, methods of making, and uses of the same. In particular, mono or trivalent N-acetylgalactosamine analogs may be prepared by utilizing a wide variety of linkers containing functional groups. These functionalized N-acetylgalactosamine-analogs may be used in the preparation of targeted delivery of oligonucleotide-based therapeutics.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: May 28, 2024
    Assignee: Hongene Biotech Corporation
    Inventors: Wing C. Poon, Xiaoyang Guan, David Yu, Ruiming Zou, Xiaojun Li, Michael Su, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Aldrich N. K. Lau
  • Publication number: 20240117362
    Abstract: Embodiments of the present disclosure relate to lipid-PEGylated solid support and phosphoramidites derivatives, methods for preparing the same, and their uses in the delivery of oligonucleotide drugs to the cellular targets.
    Type: Application
    Filed: August 16, 2023
    Publication date: April 11, 2024
    Inventors: Mufa Zou, David Yu, Aldrich N.K. Lau, Ruiming Zou, Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Allen Wong, Xiaojun Li
  • Publication number: 20240092817
    Abstract: Embodiments of the present application relate to polymers used as polymeric polyvalent hub for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polyvalent hub are also provided.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 21, 2024
    Inventors: Gaomai Yang, Yun-Chiao Yao, David Yu, Aldrich N.K. Lau