Patents by Inventor John Se Kit Yuen

John Se Kit Yuen 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).

  • Patent number: 5859582
    Abstract: A personal security alarm device includes a flashlight having a main housing with a bulb and reflector, a battery compartment and an actuation switch. A sub-housing is pivotally mounted in an L-shaped cut out portion at the lower front end of the main housing. An audible alarm is mounted in the main housing and is energized by pulling a handle to extract a contact pin from the housing and close a pair of electrical contacts.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: January 12, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D388785
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: January 6, 1998
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D390986
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: February 17, 1998
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D393088
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: March 31, 1998
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D394911
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: June 2, 1998
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D397817
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: September 1, 1998
    Assignee: John Manufacturing Ltd.
    Inventor: John Se-Kit Yuen
  • Patent number: D399578
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: October 13, 1998
    Assignee: John Manufacturint Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D404158
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: January 12, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D405902
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: February 16, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D406668
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: March 9, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D406914
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: March 16, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D407170
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 23, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D407171
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 23, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D407509
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: March 30, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D407510
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: March 30, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D407512
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 30, 1999
    Assignee: John Manufacturing Ltd.
    Inventor: John Se-Kit Yuen
  • Patent number: D407514
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: March 30, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D409317
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: May 4, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D410556
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: June 1, 1999
    Assignee: John Manufacturing Ltd.
    Inventor: John Se-Kit Yuen
  • Patent number: D412371
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 27, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen