Patents by Inventor Kenneth Frank Johnson

Kenneth Frank Johnson 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 for bricklaying
    Patent number: 4093172
    Abstract: A hand-tool for mortaring bricks in a course includes a frame bent transversely at right angles, the side pieces of said frame carrying flanges to align the tool by engaging the side faces of bricks already laid. A handle is attached to the frame.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: June 6, 1978
    Inventor: Kenneth Frank Johnson