Patents by Inventor Wah Yuen To

Wah Yuen To 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: 20230382983
    Abstract: The present invention provides antagonizing antibodies that bind to complement factor D (CFD), conjugates thereof, and methods of using same. The anti-CFD antibodies can be used therapeutically alone or in combination with other therapeutics to treat age related macular degeneration and other diseases.
    Type: Application
    Filed: February 6, 2023
    Publication date: November 30, 2023
    Inventors: Daniel Victor Perlroth, Wah Yuen To, Hong Liang, Rachel Marie DeVay Jacobson, Fernando Corrêa
  • Patent number: 11584790
    Abstract: The present invention provides antagonizing antibodies that bind to complement factor D (CFD), conjugates thereof, and methods of using same. The anti-CFD antibodies can be used therapeutically alone or in combination with other therapeutics to treat age related macular degeneration and other diseases.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 21, 2023
    Assignee: KODIAK SCIENCES INC.
    Inventors: Daniel Victor Perlroth, Wah Yuen To, Hong Liang, Rachel Marie DeVay Jacobson, Fernando Corrêa
  • Patent number: 11276614
    Abstract: A pick and place LED testing apparatus, comprising: a test station operative in use to power a group of LEDs; a bondhead operative in use to pick said group of LEDs from a source wafer and place said group of LEDs on said test station for testing; and an optical sensor operative in use to measure an optical characteristic of said group of LEDs when tested, wherein at least a portion of said bondhead is translucent to provide an optical path from said group of LEDs to said optical sensor.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 15, 2022
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Shun Yan Lee, Sai Kit Wong, Chi Wah Yuen, Ka Yee Mak, Gary Peter Widdowson
  • Publication number: 20220037213
    Abstract: A pick and place LED testing apparatus, comprising: a test station operative in use to power a group of LEDs; a bondhead operative in use to pick said group of LEDs from a source wafer and place said group of LEDs on said test station for testing; and an optical sensor operative in use to measure an optical characteristic of said group of LEDs when tested, wherein at least a portion of said bondhead is translucent to provide an optical path from said group of LEDs to said optical sensor.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 3, 2022
    Inventors: Shun Yan LEE, Sai Kit WONG, Chi Wah YUEN, Ka Yee MAK, Gary Peter WIDDOWSON
  • Publication number: 20210324063
    Abstract: Provided herein are anti-VEGF-A antibodies and antibody conjugates thereof. Some embodiments of the antibodies can be conjugated to a moiety, such as a HEMA-PC polymer. Some embodiments of the antibody conjugates can retain or enhance antibody activity. The antibody and conjugate thereof can be particularly useful for treating diabetic retinopathy. Further provided are methods for conjugation of a polymer to a protein such as an antibody, such as IgG1.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 21, 2021
    Inventors: Daniel Victor Perlroth, Wah Yuen To, Hong Liang
  • Patent number: 11066465
    Abstract: Provided herein are anti-VEGF-A antibodies and antibody conjugates thereof. Some embodiments of the antibodies can be conjugated to a moiety, such as a HEMA-PC polymer. Some embodiments of the antibody conjugates can retain or enhance antibody activity. The antibody and conjugate thereof can be particularly useful for treating diabetic retinopathy. Further provided are methods for conjugation of a polymer to a protein such as an antibody, such as IgG1.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 20, 2021
    Assignee: KODIAK SCIENCES INC.
    Inventors: Daniel Victor Perlroth, Wah Yuen To, Hong Liang
  • Publication number: 20180334496
    Abstract: The present invention provides antagonizing antibodies that bind to complement factor D (CFD), conjugates thereof, and methods of using same. The anti-CFD antibodies can be used therapeutically alone or in combination with other therapeutics to treat age related macular degeneration and other diseases.
    Type: Application
    Filed: April 12, 2018
    Publication date: November 22, 2018
    Inventors: D. Victor Perlroth, Wah Yuen To, Hong Liang, Rachel Marie DeVay Jacobson, Fernando Corrêa
  • Publication number: 20170190766
    Abstract: Provided herein are anti-VEGF-A antibodies and antibody conjugates thereof. Some embodiments of the antibodies can be conjugated to a moiety, such as a HEMA-PC polymer. Some embodiments of the antibody conjugates can retain or enhance antibody activity. The antibody and conjugate thereof can be particularly useful for treating diabetic retinopathy. Further provided are methods for conjugation of a polymer to a protein such as an antibody, such as IgG1.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 6, 2017
    Inventors: D. Victor Perlroth, Wah Yuen To, Hong Liang
  • Patent number: 9344268
    Abstract: A phase alignment architecture enhances the performance of communication systems. The architecture aligns a divided clock (e.g., in differential Inphase (I) and Quadrature (Q)) to a main clock, even at extremely high speeds, where skew variations of the divided clock are comparable to the main clock period. The improvement in phase alignment facilitates ultra high-speed communications.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 17, 2016
    Assignee: Broadcom Corporation
    Inventors: Ali Nazemi, Burak Catli, Wayne Wah-Yuen Wong, Kangmin Hu, Hyo Gyuem Rhew, Delong Cui, Jun Cao, Bo Zhang, Afshin Doctor Momtaz
  • Patent number: 9241513
    Abstract: An item of clothing (10) for daily pharmacological treatment of a fungal infection, comprising: a textile material (20) to manage moisture when the item of clothing (10) is worn; microcapsules (30) grafted on the textile material (20); and antifungal agents encapsulated within the microcapsules (30) to pharmacologically treat the fungal infection when released from the microcapsules (30).
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 26, 2016
    Assignee: The Hong Kong Polytechnic University
    Inventors: Marcus Chun Wah Yuen, Joanne Yiu Wan Yip, Kevin Cheuk, Chi Wai Kan, Shuk Yan Cheng
  • Publication number: 20130052248
    Abstract: An item of clothing (10) for daily pharmacological treatment of a fungal infection, comprising: a textile material (20) to manage moisture when the item of clothing (10) is worn; microcapsules (30) grafted on the textile material (20); and antifungal agents encapsulated within the microcapsules (30) to pharmacologically treat the fungal infection when released from the microcapsules (30).
    Type: Application
    Filed: August 26, 2011
    Publication date: February 28, 2013
    Inventors: Marcus Chun Wah YUEN, Joanne Yiu Wan YIP, Kevin CHEUK, Chi Wai KAN, Shuk Yan CHENG
  • Patent number: 8344007
    Abstract: A cantharimide compound may include the backbone of formula (1). R1, R2, R3, and R4 may be independently selected from the group consisting of H, C(O)OR5, C(O)R6, C(O)NR7R8, NR9C(O)R10, N—R11R12, O—R13, S—R14, P(O)(OR15)(OR16), As(O)(OR17)(OR18), SO2R19, SO3R20, and B(OR21). X1 to X4 may be independently selected from the group consisting of nitrogen and carbon, such that X1 to X4 are not all hydrogen. Y1, Y2 and R5 to R21 may be independently selected from the group consisting of hydrogen, C1-12-alkyl, -aryl, heteroaryl, and a bioactive polymer.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: January 1, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Johnny Cheuk-on Tang, Albert Sun-chi Chan, Kim-hung Lam, Chung-hin Chui, Stanton Hon Lung Kok, Marcus Chun Wah Yuen, Sau Hing Chan, Chor Hing Cheng, Filly Cheung
  • Publication number: 20100273840
    Abstract: A cantharimide compound may include the backbone of formula (1). R1, R2, R3, and R4 may be independently selected from the group consisting of H, C(O)OR5, C(O)R6, C(O)NR7R8, NR9C(O)R10, N—R11R12, O—R13, S—R14, P(O)(OR15)(OR16), As(O)(OR17)(OR18), SO2R19, SO3R20, and B(OR21). X1 to X4 may be independently selected from the group consisting of nitrogen and carbon, such that X1 to X4 are not all hydrogen. Y1, Y2 and R5 to R21 may be independently selected from the group consisting of hydrogen, C1-12-alkyl, -aryl, heteroaryl, and a bioactive polymer.
    Type: Application
    Filed: April 23, 2009
    Publication date: October 28, 2010
    Inventors: Johnny Cheuk-on Tang, Albert Sun-chi Chan, Kim-hung Lam, Chung-hin Chui, Stanton Hon Lung Kok, Marcus Chun Wah Yuen, Sau Hing Chan, Chor Hing Cheng, Filly Cheung
  • Patent number: 7531203
    Abstract: A method for the production of a conductive flexible textile array. The method includes the application of an oxidizing agent to selected areas of the textile; coating the textile with pyrrole by vapor deposition to form a conductive coated textile having a polypyrrole network; stabilizing the conductive coated textile; and forming the conductive flexible textile arrays as a sensor. With this method of production, the degree of polymerization of the conjugated polymer, the morphology and the rate of the capacitance delay is carefully controlled. As such, stable flexible textile sensors are produced with various levels of sensitivities and conductivities which are particularly useful for designed applications.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: May 12, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Xiaoming Tao, Sarah Mei-Yi Leung, Marcus Chun-Wah Yuen, Wing-Yin Kwok, Hoi-Lut Ho
  • Publication number: 20070065586
    Abstract: Polypyrrole (PPy) is one of the most commonly studied conducting polymers due to its good stability, high conductivity, ease of preparation and non-toxicity. The stability of the conductivity of polypyrrole films depends on the choice of dopant anion, the method of preparation, and the conditions of aging. Most of the existing methods only improve stability by sacrificing conductivity, as well as sensitivity. This invention provides a method for coating conducting polymer onto a substrate by first applying an anionic dopant and an oxidizing agent onto the substrate. The monomer is then allowed to form the conducting polymer at about ?10 to ?80° C. for a sufficient period of time. After storage for a long period of time (nearly a year), the conductive polymer coating still retains almost the same strain sensitivity and at least up to 85% of its initial conductivity.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 22, 2007
    Applicant: The Hong Kong Polytechnic University
    Inventors: Xiao-ming Tao, Mei-yi Leung, Yang Li, Xiao-yin Cheng, Joanna Tsang, Chun-wah Yuen