Patents by Inventor Ong S. Hoo

Ong S. Hoo 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).

  • Rotary engine
    Patent number: 4212283
    Abstract: An ignition plug is housed in a plug channel the cross-section of which reduces towards the end of the channel remote from the plug, and which terminates in an opening which is narrower in the direction of engine rotation. Burning efficiency is thereby enhanced, with effective constraint of harmful exhaust gas production.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: July 15, 1980
    Inventor: Ong S. Hoo