Patents by Inventor Onn F. Foo

Onn F. Foo 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 of producing a low-pressure mercury vapor discharge lamp
    Patent number: 5423704
    Abstract: A method of producing a low-pressure mercury vapor discharge lamp comprising two or more substantially parallel co-extending glass discharge tubes includes forming an inter-connecting joint between the tubes by heating the tubes to form blisters and causing the blisters to simultaneously fuse and break, thereby forming a joint between the tubes.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: June 13, 1995
    Assignee: Mass Technology (H.K.) Ltd.
    Inventor: Onn F. Foo
  • Fluorescent tube
    Patent number: D353899
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: December 27, 1994
    Assignee: Mass Technology (H.K.) Ltd.
    Inventor: Onn F. Foo