Patents by Inventor Wei-Lu Yang

Wei-Lu Yang 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).

  • Tube's cap and the pierce structure of a sealed opening
    Patent number: 4456150
    Abstract: A cap for use on a tube of adhesive is equipped with a cutter at one end for puncturing the sealed opening of the tube and an internal through bore, the cutter being maintained in a spaced relationship with the sealed opening prior to use by a protecting ring which can be readily deformed into a stand for the tube, the stand being attached to the cap when the cutter is moved to puncture the sealed opening.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: June 26, 1984
    Inventor: Wei-Lu Yang