Patents by Inventor Po Wo Koo

Po Wo Koo 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: 6444891
    Abstract: Electronic guitar including a case, a keyboard, a sound synthesis electronic assembly and an output line. The keyboard is divided into an upper keyboard arranged on a neck of the case and a lower keyboard arranged on a body of the case. The upper and lower keyboards constitute a complex array. When a key on the upper keyboard and a key on the lower keyboard are pressed, a determined note is generated by the sound synthesis electronic assembly and can be output to a karaoke CD player. It is thus possible to play this guitar while singing the karaoke.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: September 3, 2002
    Inventor: Po Wo Koo
  • Publication number: 20020053276
    Abstract: An electronic guitar comprising a case (1), a keyboard (2), a sound synthesis electronic assembly (3), and an output line (4), characterized in that the keyboard (2) is divided into an upper keyboard (2-1) disposed on the neck (1-1) and a lower keyboard (2-2) disposed on the body (1-2); the upper and lower keyboards constitute a complex array; when a key on the upper keyboard and a key on the lower keyboard are pressed, a predetermined note is generated by the sound synthesis electronic assembly (3) and can be output to a karaoke CD player. It is possible to play this guitar while singing the karaoke, which is more pleasant. This guitar has novel and simple structure and is sure to be welcome.
    Type: Application
    Filed: April 9, 2001
    Publication date: May 9, 2002
    Inventor: Po Wo Koo