Patents by Inventor Yhan G. Lee

Yhan G. Lee 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: 6154881
    Abstract: An improved face protector of a type having a head-engaging strap, a forehead engaging-stiffening member, a facing protecting-lens, and pivoting apparatus. The improvement includes the pivoting apparatus including a pair of studs that extend outwardly through associated pivoting-throughbores in the head-engaging strap, outwardly through associated pivoting-throughbores in the forehead engaging-stiffening member, and outwardly through associated pivoting-throughbores in the facing protecting-lens, and a pair of flat-head screws threadably engaging in the associated shafts of the studs from a direction of the facing protecting-lens and having heads disposed adjacent to the facing protecting-lens for setting friction level of the pivoting apparatus. The shafts of the studs have flats along a portion of their lengths extending from ends thereof so as to form flat portions having D-shaped lateral profiles.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: December 5, 2000
    Inventor: Yhan G. Lee