Patents by Inventor Yiu Chung

Yiu Chung 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).

  • Method for storing a bread slicing guide
    Patent number: 5823079
    Abstract: The new bread slicing guide includes a base member and a pair of guide members mounted with respect to the base member for pivoting movement about respective pivot axes. The pivot axes are under the base member so that the guide members may be folded toward and substantially against one another for storage. Each guide member is retained in a bread slicing position or a storage position by a position retention mechanism having a cavity and a raised portion generally conforming in shape to the shape of the cavity. A new method is also disclosed.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: October 20, 1998
    Assignee: The West Bend Company
    Inventors: Simon Yiu-Chung Liu, Cheng Yue-Chun
  • Process for catalytic epoxidation of olefinic compounds, novel cyclic ketone catalysts useful in said process
    Patent number: 5763623
    Abstract: Methods for effecting epoxidation of olefinic compounds using cyclic ketone catalysts is provided. In particular, catalytic asymmetric epoxidation of unfunctionalized olefins, e.g., trans-olefins and trisubstituted olefins using novel cyclic ketones possessing C.sub.2 symmetric chiral elements is provided.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: June 9, 1998
    Assignee: The University of Hong Kong
    Inventors: Dan Yang, Jian-Hua Zhang, Man-Kin Wong, Yiu-Chung Yip, Man-Wai Tang
  • Bread slicing guide with foldaway storage feature
    Patent number: 5653154
    Abstract: The new bread slicing guide includes a base member and a pair of guide members mounted with respect to the base member for pivoting movement about respective pivot axes. The pivot axes are under the base member so that the guide members may be folded toward and substantially against one another for storage. Each guide member is retained in a bread slicing position or a storage position by a position retention mechanism having a cavity and a raised portion generally conforming in shape to the shape of the cavity. A new method is also disclosed.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: August 5, 1997
    Assignee: The West Bend Company
    Inventors: Simon Yiu-Chung Liu, Cheng Yue-Chun
  • Combination of high intensity lamp and built-in solid state clock
    Patent number: D245874
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: September 20, 1977
    Inventor: Yiu Chung Lap
  • Fluorescent lamp
    Patent number: D246678
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: December 13, 1977
    Inventor: Yiu Chung Lap
  • Bread slicing rack
    Patent number: D389380
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: January 20, 1998
    Assignee: West Bend Company
    Inventors: Simon Yiu-Chung Liu, Cheng Yue-Chun