Patents by Inventor Tu Heng-Wei

Tu Heng-Wei 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).

  • Liquid oil lamps
    Publication number: 20070218413
    Abstract: A liquid fuel lamp is provided with a wick carrying composite safety cap which is mountable to and removable from the liquid fuel container only by simultaneous pressing and turning actions. The safety cap has a spring biassed latch and a wick guard surrounding in a spaced manner around the upper end portion of the wick.
    Type: Application
    Filed: March 20, 2006
    Publication date: September 20, 2007
    Inventor: Tu Heng-Wei