Patents by Inventor John S. Yuen

John S. 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).

  • Combined fluorescent lamp and spotlight
    Patent number: 4432043
    Abstract: A combined fluorescent lamp and spotlight which is simple to manufacture and assemble has a trough-shaped body member of generally rectangular section with tubular cylindrical projections at its ends and a chassis member received on the trough-shaped body member and closing the open side thereof, the chassis member mounting a bulb holder for a bulb, fluorescent tube mounting members, a printed circuit board, a switch and battery contacts such that all the electrical components requiring connection together are all provided on the chassis member which can be completely wired before being engaged on the trough-shaped body member to close the open side thereof.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: February 14, 1984
    Assignee: Parly Tools Manufacturing Limited
    Inventor: John S. Yuen
  • Portable fan and heater
    Patent number: D274552
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: July 3, 1984
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Combined warning flasher and flashlight
    Patent number: D276658
    Type: Grant
    Filed: June 15, 1982
    Date of Patent: December 4, 1984
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Portable battery powered humidifier or the like
    Patent number: D279815
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: July 23, 1985
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Combined fluorescent lamp and flashlight incorporating an emergency beacon
    Patent number: D279819
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: July 23, 1985
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Combined torch and lantern
    Patent number: D279820
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: July 23, 1985
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Electrically powered body massager
    Patent number: D281625
    Type: Grant
    Filed: October 5, 1982
    Date of Patent: December 3, 1985
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen
  • Combined electric fan and fan heater
    Patent number: D282101
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: January 7, 1986
    Assignee: John Manufacturing Limited
    Inventor: John S. Yuen