Patents by Inventor Wai Cheuk

Wai Cheuk 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: 20240401371
    Abstract: The present invention discloses a cylinder and a control component and relates to the field of locks, comprising two mirror-symmetric cylinder mechanisms (B) which jointly drive a latchbolt control ring (1), wherein the cylinder mechanisms (B) comprise an electric locking ring (2, 9) and a control pillar (8, 11), wherein each of the two control pillars (8, 11) is equipped with a first control pin (71) and a second control pin (72), wherein the first control pin (71) and the second control pin (72) circulates around the rotatable shaft (81), wherein the rotation direction, in which the first control pins (71) controls the latchbolt control ring (1) to unlatch, corresponds to the rotation direction, in which the second control pin (72) controls the latchbolt control ring (1) to unlatch. The present invention enables equal operations on both sides of a door, and that the separate operation on both sides of the door does not interfere with each other.
    Type: Application
    Filed: August 14, 2024
    Publication date: December 5, 2024
    Inventor: Wai Cheuk Raymond IP
  • Publication number: 20210180361
    Abstract: The present invention discloses a cylinder and a control component and relates to the field of locks, comprising two mirror-symmetric cylinder mechanisms which jointly drive a latchbolt control ring. The present invention enables equal operations on both sides of a door, and that the separate operation on both sides of the door does not interfere with each other. Furthermore, only one cylinder is required, which simplifies the structure and a single motor realizes a not-interfered alternating output on both sides of the door.
    Type: Application
    Filed: January 5, 2021
    Publication date: June 17, 2021
    Inventor: Wai Cheuk Raymond IP
  • Patent number: 8685943
    Abstract: Compositions (including pharmaceutical compositions, foods, supplements, toys and treats) comprising a microbial exopolysaccharide are provided as well as methods for preventing or reducing diarrhea in a mammal wherein the method comprises administering a therapeutically amount of a microbial exopolysaccharide to a mammal in need thereof.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 1, 2014
    Assignee: Hill's Pet Nutrition, Inc.
    Inventors: Wai Cheuk, Chistina Khoo
  • Patent number: 8563029
    Abstract: Compositions (including pharmaceutical compositions, foods, supplements, toys and treats) comprising a microbial exopolysaccharide are provided as well as methods for preventing or reducing diarrhea in a mammal wherein the method comprises administering a therapeutically amount of a microbial exopolysaccharide to a mammal in need thereof.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 22, 2013
    Assignee: Hill's Pet Nutrition, Inc.
    Inventors: Wai Cheuk, Christina Khoo
  • Publication number: 20080160164
    Abstract: Compositions (including pharmaceutical compositions, foods, supplements, toys and treats) comprising a microbial exopolysaccharide are provided as well as methods for preventing or reducing diarrhea in a mammal wherein the method comprises administering a therapeutically amount of a microbial exopolysaccharide to a mammal in need thereof.
    Type: Application
    Filed: March 17, 2008
    Publication date: July 3, 2008
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Wai Cheuk, Christina Khoo
  • Publication number: 20050042260
    Abstract: Compositions (including pharmaceutical compositions, foods, supplements, toys and treats) comprising a microbial exopolysaccharide are provided as well as methods for preventing or reducing diarrhea in a mammal wherein the method comprises administering a therapeutically amount of a microbial exopolysaccharide to a mammal in need thereof.
    Type: Application
    Filed: September 16, 2004
    Publication date: February 24, 2005
    Inventors: Wai Cheuk, Christina Khoo
  • Publication number: 20040180079
    Abstract: A method for preventing or reducing diarrhea in a mammal which comprises administering to said mammal a diarrhea preventing or diarrhea reducing amount of gellan gum.
    Type: Application
    Filed: March 12, 2003
    Publication date: September 16, 2004
    Applicant: Colgate-Palmolive Company
    Inventors: Wai Cheuk, Christina Khoo