Patents by Inventor Li-Wen Yao

Li-Wen Yao 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).

  • Tool box with compartment cover boards
    Patent number: 5398810
    Abstract: A tool box having two hinged cover shells, each cover shell defining a plurality of compartments for keeping tools and tool accessories, and a compartment cover board fastened to either cover shell by fitting its bottom pins into respective pin holes on the cover shell to keep the stored tools and tool accessories in place, the compartment cover board having a plurality of storage chambers spaced around the periphery thereof for storing small measuring tools, weights and measures conversion tables and measuring scales respectively made on two opposite surfaces thereof, and a plurality of gage holes vertically disposed on one surface for keeping different gages.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: March 21, 1995
    Inventor: Li-Wen Yao Wang
  • Tool case
    Patent number: D424295
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: May 9, 2000
    Inventor: Li-Wen Yao