Patents by Inventor Shyh-Yuan Shyh

Shyh-Yuan Shyh 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: 5284580
    Abstract: A refuse collecting frame for a drainage sewer, particularly a frame placed beneath a cover of a sewer drainage opening to accumulate refuse and permit easy disposal of refuse accumulated therein in order to prevent blockage of the sewer. The refuse collecting frame includes a frame body and a refuse collecting basin. The frame body is preferably a rectangular or cubic frame structure having a dimension corresponding to the opening of the sewer drain. A filtering net or a porous board with a plurality of penetrating holes is incorporated at each lateral side and bottom of the frame. A plurality of right-angled hangers are formed at spaced positions along the upper edges of an open upper side of the frame for firmly hanging the frame on a sewer opening by positioning the right-angled hangers on a stepped portion formed along edges of the sewer opening beneath a separate cover.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: February 8, 1994
    Inventor: Shyh-Yuan Shyh
  • Patent number: D294406
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: February 23, 1988
    Inventor: Shyh-Yuan Shyh